2018

• Regine Geyer and Marc Stelzner and Florian Büther and Sebastian Ebers: BloodVoyagerS - Simulation of the work environment of medical nanobots. in 5th ACM International Conference on Nanoscale Computing and Communication 2018 (ACM NanoCom`18), Reykjavik, Iceland, Sep, 2018
  

  @INPROCEEDINGS{Geyer2018BloodVoyagerS,
  AUTHOR={Regine Geyer and Marc Stelzner and Florian {B{\"u}ther} and Sebastian Ebers},
  TITLE={{BloodVoyagerS} - Simulation of the work environment of medical nanobots},
  BOOKTITLE={5th ACM International Conference on Nanoscale Computing and Communication 2018 (ACM NanoCom'18)},
  ADDRESS={Reykjavik, Iceland},
  YEAR={2018},
  MONTH={Sep},
  DAYS={5},
  PAGES={},
  ISBN={},
  URL={https://dx.doi.org/10.1145/3233188.3233196},
  KEYWORDS={Nanonetworks; Simulation; Medical Application; Nano medicine,NCN},
  ABSTRACT={The simulation of nanobots in their working environment is crucial to
  promote their application in the medical context. Several simulators for
  nanonetworks investigate new communication paradigms at nanoscale. However,
  the influence of the environment, namely the human body, on the movement
  and communication of nanobots was not considered so far. We propose a
  framework for simulating medical nanonetworks, which integrates a
  nanonetwork simulator with a body simulator. We derive requirements for a
  body model that forms the basis for our prototypical implementation of the
  body simulator BloodVoyagerSas part of the network simulator ns-3. An
  evaluation shows that BloodVoyagerS successfully moves nanobots in the
  simulated cardiovascular system. After about 7 minutes, the nanobot
  distribution reaches a dynamic equilibrium. The prototype shows promise to
  provide a more realistic full-body simulation to investigate movement and
  communication of nanobots in medical applications.}
  }

• Florian Büther and Immo Traupe and Sebastian Ebers: Hop Count Routing: A Routing Algorithm for Resource Constrained, Identity-Free Medical Nanonetworks. in 5th ACM International Conference on Nanoscale Computing and Communication 2018 (ACM NanoCom`18), Reykjavik, Iceland, Sep, 2018
  

  @inproceedings{Buether2018Hop,
    author={Florian {B{\"u}ther} and Immo Traupe and Sebastian Ebers},
    title={Hop Count Routing: A Routing Algorithm for Resource Constrained, {Identity-Free} Medical Nanonetworks},
    booktitle={5th ACM International Conference on Nanoscale Computing and Communication 2018 (ACM NanoCom'18)},
    address={Reykjavik, Iceland},
    year={2018},
    month={Sep},
    days={5},
    numpages={6},
    doi={10.1145/3233188.3233193},
    isbn={978-1-4503-5711-1/18/09},
    keywords={Routing; Nanonetworks; Algorithm; Hop Count; Identity-Free,NCN},
    url={https://dx.doi.org/10.1145/3233188.3233193},
    abstract={Nanodevices, tiny robots operating within a human body, may help to detect and treat many kinds of diseases. As their individual abilities are limited by size, they need to work in concert. Communication provides the fundamental ability to enable this collaboration. In medicine, nanodevices act as a tool for a physician to report sensor data and receive action commands. Their communication thus flows to and from a gateway to the macro world. Routing algorithms focus on enabling these data streams. We propose a new routing algorithm for medical nanonetworks based on a network topology constructed from the hop count distance to a singular gateway. It exploits the distance as a direction indicator to deliver data towards or away from the gateway. The resource constrained nanodevices store no unique identity, but only require a single integer each. Simulation results show that a naive implementation produces exponentially many messages. We mitigate this with a second approach by removing the hop count when retrieving sensor data, which requires only a linear number of messages. Our comparison finds the latter to be more efficient in terms of transmitted messages, while the first implementation is more suitable for routing several messages in parallel.}
  }

• Marc Stelzner and Fabian Busse and Sebastian Ebers: In-Body Nanonetwork Routing based on MANET and THz. in 5th ACM International Conference on Nanoscale Computing and Communication 2018 (ACM NanoCom`18), Reykjavik, Iceland, Sep, 2018
  

  @inproceedings{Stelzner2018Routing,
    author={Marc Stelzner and Fabian Busse and Sebastian Ebers},
    title={In-Body Nanonetwork Routing based on {MANET} and {THz}},
    booktitle={5th ACM International Conference on Nanoscale Computing and Communication 2018 (ACM NanoCom'18)},
    address={Reykjavik, Iceland},
    year={2018},
    month={Sep},
    days={5},
    numpages={6},
    doi={10.1145/3233188.3233197},
    isbn={978-1-4503-5711-1/18/09},
    keywords={Routing; Nanonetworks; Algorithm; Hop Count; Identity-Free, NCN},
    abstract={Devices at the nanoscale are envisioned to be used in medical applications
  to detect and treat diseases within a human body. However,
  due to its severe resource constraints, a nanoscale device might not
  execute complex tasks on its own. For this, we envision a medical
  nanonetwork, comprising an in-body network built of nanonodes
  and a Body Area Network (BAN) built of macroscale devices coordinating
  and controlling the nanonodes. Due to the characteristics
  of the in-body network and its nodes, conventional routing protocols
  for macroscale mobile ad-hoc networks (MANET) are not directly
  applicable and novel approaches are needed. However, since
  a nanonetwork shares some characteristics of macroscale MANETs,
  we identied promising protocols and evaluated their suitability for
  nanonetworks using THz communication. We define requirements
  for their applicability and compared their performance.}
  }

• Marc Stelzner and Kim Scharringhausen and Sebastian Ebers: Nanoscale Diagnostic Procedures - Sensing inside the human body. in 5th ACM International Conference on Nanoscale Computing and Communication 2018 (ACM NanoCom`18), Reykjavik, Iceland, sep, 2018
  

  @INPROCEEDINGS{Stel1809:Nanoscale,
  AUTHOR={Marc Stelzner and Kim Scharringhausen and Sebastian Ebers},
  TITLE={Nanoscale Diagnostic Procedures - Sensing inside the human body},
  BOOKTITLE={5th ACM International Conference on Nanoscale Computing and Communication
  2018 (ACM NanoCom'18)},
  ADDRESS={Reykjavik, Iceland},
  YEAR={2018},
  MONTH={sep},
  DAYS={5},
  PAGES={},
  ISBN={},
  KEYWORDS="sensor; nanodevice; diagnostic procedures; medicine; NCN",
  ABSTRACT="The application of nanotechnology in medicine is envisioned for detecting
  and treating diseases. In literature, the ability of nanodevices to sense
  their environment is taken for granted and precondition for application
  scenarios. However, how this is done and which diagnostic procedures
  actually benefit from the application of properly qualified nanodevices is
  rarely stated. In this paper, we distinguish four traditional diagnostic
  procedures and introduce our evaluation of how nanonodes may benefit from
  quantitative procedures."
  }
  

2017

• Dennis Boldt and Sebastian Ebers: Security Mechanisms for Signaling in WebRTC-based Peer-to-Peer Networks. in International Conference on Computational Science and Computational Intelligence (CSCI), IEEE Computer Society, Las Vegas, Nevada, USA, December, 2017
  

  @inproceedings{Boldt:2017:Security,
  	title = {Security Mechanisms for Signaling in WebRTC-based Peer-to-Peer Networks},
  	author = {Dennis Boldt and Sebastian Ebers},
  	booktitle = {International Conference on Computational Science and Computational Intelligence (CSCI)},
  	year = {2017},
  	month = {December},
  	days = {14--16}
  	address = {Las Vegas, Nevada, USA},
  	editor = {H. R. Arabnia and L. Deligiannidis and F. G. Tinetti and Q-N. Tran and M. Qu Yang},
  	publisher = {IEEE Computer Society},
  	isbn = {978-1-5386-2652-8},
  	doi = {10.1109/CSCI.2017.313},
  }

• Florian Büther and Florian Lau and Marc Stelzner and Sebastian Ebers: A Formal Definition for Nanorobots and Nanonetworks. in The 17th International Conference on Next Generation Wired/Wireless Advanced Networks and Systems + The 10th conference on Internet of Things and Smart Spaces (NEW2AN ruSMART 2017), Springer, St.Petersburg, Russia, Sep, 2017
  

  @inproceedings{Buether2017Formal,
  author={Florian Büther and Florian Lau and Marc Stelzner and Sebastian Ebers},
  title={A Formal Definition for Nanorobots and Nanonetworks},
  booktitle={The 17th International Conference on Next Generation Wired/Wireless Advanced Networks and Systems + The 10th conference on Internet of Things and Smart Spaces (NEW2AN ruSMART 2017)},
  address={St.Petersburg, Russia},
  days={27},
  publisher={Springer},
  month={Sep},
  year={2017},
  url={https://dx.doi.org/10.1007/978-3-319-67380-6_20},
  doi={10.1007/978-3-319-67380-6_20},
  keywords={Nanorobot; Nanonetwork; Definition; Nanomachine; Machine Model,NCN,flau},
  abstract={Nano computation and communication research examines nanosized devices like sensor nodes or robots. Over the last decade, it has attracted attention from many different perspectives, including material sciences, biomedical engineering, and algorithm design. With growing maturity and diversity, a common terminology is increasingly important. In this paper, we analyze the state of the art of nanoscale computational devices, and infer common requirements. We combine these with definitions for macroscale machines and robots to define Nanodevices, an umbrella term that includes all nanosized artificial devices. We derive definitions for Nanomachines and Nanorobots, each with a set of mandatory and optional components. Constraints concerning artificiality and purpose distinguish Nanodevices from nanoparticles and natural life forms. Additionally, we define a Nanonetwork as a network comprised of Nanodevices, and show the specific challenges for Medical Nanorobots and Nanonetworks. We integrate our definition into the current research of Nanodevice components with a set of examples for electronic and biological implementations.}
  }
  

2016

• Stelzner, Marc and Lau, Florian-Lennert and Freundt, Katja and Florian Büther and Nguyen, Mai Linh and Stamme, Cordula and Ebers, Sebastian: Precise Detection and Treatment of Human Diseases Based on Nano Networking. in 11th International Conference on Body Area Networks (BODYNETS 2016), pp. 58-64, EAI, Turin, Italy, December, 2016
  

  @INPROCEEDINGS{stelzner2016precise,
  author={Stelzner, Marc and Lau, Florian-Lennert and Freundt, Katja and Florian Büther and Nguyen, Mai Linh and Stamme, Cordula and Ebers, Sebastian},
  title={{Precise Detection and Treatment of Human Diseases Based on Nano Networking}},
  booktitle={11th International Conference on Body Area Networks (BODYNETS 2016)},
  address={Turin, Italy},
  year={2016},
  month={December},
  keywords={NCN,flau},
  pages={58--64},
  publisher={EAI},
  url={https://dl.acm.org/citation.cfm?id=3068615.3068631},
  abstract={highlight, This paper presents an elaborate scenario to and detect, motivate interdisciplinary computer science involvement in nanotechnology for medical applications. Our scenario illustrates how nanotechnology can be employed to and morbidity, potentially directly treat infectious diseases as a paradigm for human disorders associated with high and mortality. Thus, more precise techniques that monitor the presence and (host-, concentration of critical marker molecules and pathogen-derived) may be applicable at an earlier stage of the disease. Moreover, since the concentration threshold varies from person to person, continuous and diagnostic, individualized monitoring of both and detect, therapeutic measures is required. To and treat diseases directly at the affected location, we propose the usage of an in-body nano network build by nano machines. To report ndings and receive commands from outside of the body, the nano network is connected to a body area network via gateways. In this paper, we discuss the capabilities of nano machinery and architecture., presents the aforementioned network},
  owner={Marc},
  timestamp={2017.01.31}
  }

2015

• Kleine, O. and Ebers, S. and Leggieri, M.: Monitoring Urban Traffic using Semantic Web Services on Smartphones - A Case Study. in SWANSITY 2015 - 2nd Workshop on Smart Wireless Access Networks for Smart cITY (IEEE SECON Workshop) (SWANSITY 2015), pp. 1-6, Seattle, USA, June 22 - 25, 2015
  

  @INPROCEEDINGS{kleine15,
    AUTHOR={Kleine, O. and Ebers, S. and Leggieri, M.},
    TITLE={{Monitoring Urban Traffic using Semantic Web Services on Smartphones - A Case Study}},
    BOOKTITLE={SWANSITY 2015 - 2nd Workshop on Smart Wireless Access Networks for Smart cITY (IEEE SECON Workshop) (SWANSITY 2015)},
    YEAR={2015}, 
    MONTH={June 22 -- 25},
    ADDRESS={Seattle, USA},
    PAGES={1--6},
    KEYWORDS={Internet of Things, Web of Things, Semantic Web, Linked Data, own},
    ABSTRACT={The Internet of Things aims to integrate arbitrary things with the
    Internet. Sadly, the majority of things lacks of the ability to communicate
    which makes a direct integration with a communication network, i.e., the
    Internet, impossible. We overcome this limitation by introducing refined
    versions of Semantic Entities, with special Web Services, representing
    arbitrary real-world things states using (possibly aggregated) sensor
    values. Sensors can be considered ubiquitous, e.g., due to the omnipresence
    of smartphones.
  
    Our architecture of a Semantic Web of Things bases on sensors providing
    their measurements in RDF. We account for the common fact of resource
    constraints on sensor platforms by introducing a scalable caching mechanism
    for RDF data within a network of proxies (SSPs). Consequently, the
    individual Semantic Entities find and aggregate relevant (sensor) data via
    SPARQL. Besides scalabilty, the proxies also solve the issue of the sensor
    platforms diversity in terms of communication interfaces.}    
  }

• Sebastian Ebers and Horst Hellbrück and Stefan Fischer: VaSili - A Simulation Runtime Environment for Applications in Vehicular Ad-Hoc Networks. in 12th Annual IEEE Consumer Communications and Networking Conference, CCNC: CCNC 2015 Workshops - VENITS 2015, pp. 937-942, Las Vegas, NV, USA, January, 2015
  

  @inproceedings{Ebers2015:VaSili,
    author    = {Sebastian Ebers and Horst Hellbrück and Stefan Fischer},
    title     = {{VaSili} - {A} {S}imulation {R}untime {E}nvironment for 
  		{A}pplications in {V}ehicular {Ad-Hoc} {N}etworks},
    booktitle = {12th Annual {IEEE} Consumer Communications and Networking Conference,
                 {CCNC}: CCNC 2015 Workshops - VENITS 2015},
   year      = {2015},  
   month     = {9.-12. Januar},
   address = {Las Vegas, NV, USA},
   pages     = {937--942},
   doi       = {10.1109/CCNC.2015.7158102},
   keywords  = {VANET; VANET Simulator; VANET API; Simulation Runtime; Simulation Environment; 
  Simulation Framework; Application Development}
  }

2014

• Sebastian Ebers and and Stefan Fischer: Poster: Adapter Framework for VANET Simulators. in Vehicular Networking Conference (VNC), 2014 IEEE, pp. 193-194, Dec, 2014
  

  @INPROCEEDINGS{Ebers2014:Adapter, 
  author={Sebastian Ebers and and Stefan Fischer}, 
  booktitle={Vehicular Networking Conference (VNC), 2014 IEEE}, 
  title={{Poster: Adapter Framework for VANET Simulators}}, 
  year={2014}, 
  month={Dec}, 
  pages={193-194}, 
  keywords={application program interfaces;vehicular ad hoc networks;VANET API;VANET simulators;adapter framework;vehicular ad-hoc networks;Adaptation models;Computational modeling;Java;Mobile computing;Protocols;Vehicular ad hoc networks}, 
  doi={10.1109/VNC.2014.7013343}}
  
  

• Christian Renner and Benjamin Meyer and Daniel Bimschas and Alexander Gabrecht and Sebastian Ebers and Thomas Tosik and Ammar Amory and Erik Maehle and Stefan Fischer: Hybrid Underwater Environmental Monitoring. in Proceedings of the 12th ACM Conference on Embedded Network Sensor Systems, pp. 340-341, ACM, New York, NY, USA, 2014
  

  @inproceedings{Renner2014hybrid,
          author=    {Christian Renner and Benjamin Meyer and Daniel Bimschas and Alexander Gabrecht and Sebastian Ebers and Thomas Tosik and Ammar Amory and Erik Maehle and Stefan Fischer},
  	title=    {{Hybrid Underwater Environmental Monitoring}},
  	booktitle=    {Proceedings of the 12th ACM Conference on Embedded Network Sensor Systems},
  	series=    {SenSys 2014},
  	year=    {2014},
          days=    {3 - 6},
          month=   {November},
          location=    {Memphis, Tennessee},
          pages=    {340--341},
          numpages=    {2},
  	isbn=    {978-1-4503-3143-2},
          publisher=    {ACM},
  	address=    {New York, NY, USA},
  	url=    {http://doi.acm.org/10.1145/2668332.2668354},
  	doi=    {10.1145/2668332.2668354},
  	acmid=    {2668354}
  }
  
  

2013

• Sebastian Ebers and Horst Hellbrück and Dennis Pfisterer and Stefan Fischer: Short Paper: Collaboration Between VANET Applications Based on Open Standards. in 2013 IEEE Vehicular Networking Conference (VNC) (IEEE VNC 2013), Boston, USA,, ec,, 013,
  

  @INPROCEEDINGS{Eber1312:Short,
  AUTHOR={Sebastian Ebers and Horst {Hellbr{\"u}ck} and Dennis Pfisterer
  and Stefan Fischer},
  TITLE={Short Paper: Collaboration Between {VANET} Applications Based on Open Standards},
  BOOKTITLE={2013 IEEE Vehicular Networking Conference (VNC) (IEEE VNC 2013)},
  ADDRESS="Boston, USA",
  DAYS=16,
  MONTH=dec,
  YEAR=2013,
  KEYWORDS="VANET; Traffic Information System; Semantic Web Technologies; Ontology; V2V Communication; Interoperability; VANET Ontology; VANET Data Representation"
  }
  
  

2011

• Sebastian Ebers and Mohamed A. Hail and Stefan Fischer and Horst Hellbrück: API for Data Dissemination Protocols - Evaluation with AutoCast,. in The Third World Congress on Nature and Biologically Computing (NaBIC 2011),, pp. 534-539, IEEE,, Salamanca, Spain,, oct,, 2011,
  

  @InProceedings{ ebers2011api,
  	author = {Sebastian Ebers and Mohamed A. Hail and Stefan Fischer and
  Horst Hellbr{\"u}ck},
  	title = "API for Data Dissemination Protocols - Evaluation with AutoCast",
  	booktitle = "The Third World Congress on Nature and Biologically
  Inspired Computing (NaBIC 2011)",
  	year = "2011",
  	address = "Salamanca, Spain",
  	publisher = "IEEE",
  	month = oct,
  	abstract = "In the past various protocols inspired by nature and
  biology have been proposed to disseminate or transfer data in mobile or
  static ad-hoc networks. Many of them are designed for usage in wireless
  sensor networks or vehicular ad-hoc networks. Recently, we have
  developed and designed a general purpose data dissemination protocol
  called AutoCast in this field that we evaluated in detail by
  simulations. When we started to use AutoCast in real applications, we
  found out that the description of AutoCast is incomplete, as we provided
  the algorithms of AutoCast in details but did neither provide nor
  describe a suitable Application Programming Interface (API) and AutoCast
  was closely coupled to the application. The focus of this article is
  twofold. First, we propose an appropriate API to encapsulate data
  dissemination protocols like AutoCast and we specify the service
  interface of AutoCast in detail. This API can serve as a reference model
  for other nature and biologically inspired data dissemination approaches
  and applications. Second, we evaluate two applications based on our API
  with AutoCast in the field of wireless sensor networks and vehicular
  ad-hoc networks to illustrate the usage of the API and demonstrate the
  flexibility of this approach.",
  	keywords = "API, communication protocols, data dissemination, vehicular
  ad-hoc networks, wireless sensor networks",
  	pages = "534--539"
  }
  
  

• Nils Glombitza and Sebastian Ebers and Dennis Pfisterer and Stefan Fischer: Using BPEL to Realize Business Processes for an Internet of Things. in 10th International Conference on Ad Hoc Networks and Wireless, jul,, 2011
  

  @INPROCEEDINGS{glombitza-BPEL4WSN,
    author = {Nils Glombitza and Sebastian Ebers and Dennis Pfisterer and Stefan
  	Fischer},
    title = {{Using BPEL to Realize Business Processes for an Internet of Things}},
    booktitle = {10th International Conference on Ad Hoc Networks and Wireless},
    year = {2011},
    month = jul,
    owner = {glombitza},
    timestamp = {2011.05.03}
  }
  
  
  

• Sebastian Ebers and Sándor P. Fekete and Stefan Fischer and Horst Hellbrück and Björn Hendriks and Axel Wegener: Hovering Data Clouds for Organic Computing,. in Organic Computing - A Paradigm Shift for Complex Systems ,, no. ,, Birkhäuser Verlag, 2011,
  

  @InBook{ EbFeFiHeHeWe11,
  	title = "Hovering Data Clouds for Organic Computing",
  	booktitle = "Organic Computing - A Paradigm Shift for Complex Systems ",
  	series = "Autonomic Systems",
  	author = {Sebastian Ebers and S{\'a}ndor P. Fekete and Stefan Fischer and Horst Hellbr{\"u}ck and Bj{\"o}rn Hendriks and Axel Wegener},
  	publisher = {Birkh{\"a}user Verlag},
  	chapter = "2.7",
  	volume = " ",
  	year = "2011",
  	doi = "10.1007/978-3-0348-0130-0\_14",
  	abstract = "As part of our project AutoNomos, we have investigated traffic information and management systems that motivate the usage of new methods and tools inspired by Organic Computing paradigms. Current traffic monitoring and management approaches with stationary infrastructure lack flexibility with respect to system deployment and have difficulties with detecting unpredictable events (e.g., accidents). One goal of AutoNomos is the development of a distributed and selforganising traffic information and management system without a centralised infrastructure. Our system relies on a GPS-based navigation system and a wireless radio interface; vehicles can gather information about the current position on the road network and form a vehicular ad-hoc network (VANET) to share information about traffic phenomena. In this article, we introduce Hovering Data Clouds (HDCs) as a tool to collect, aggregate and disseminate application-specific data. HDCs evolve in a self-organising manner at locations of relevant data in the system. Although their data is hosted on the nodes, HDCs exist independent of the individual carriers. While HDCs float between physical carriers, their corresponding HDC messages are disseminated in the network by a new effective transport protocol named AutoCast, designed according to Organic Computing paradigms. Finally, we demonstrate that HDCs detect traffic phenomena reliably and propagate them robustly within the network.",
  	keywords = "Hovering Data Clouds, Organic Computing, Self-Organizing Systems, Wireless Ad-Hoc Networks"
  }
  
  

• Sándor P. Fekete and Björn Hendriks and Christopher Tessars and Axel Wegener and Horst Hellbrück and Stefan Fischer and Sebastian Ebers: Methods for Improving the Flow of Traffic,. in Organic Computing - A Paradigm Shift for Complex Systems ,, Birkhäuser Verlag, 2011,
  

  @InBook{ FeHeTeNeNeNeEb11,
  	title = "Methods for Improving the Flow of Traffic",
  	series = "Autonomic Systems",
  	author = {S{\'a}ndor P. Fekete and Bj{\"o}rn Hendriks and Christopher Tessars and Axel Wegener and Horst Hellbr{\"u}ck and Stefan Fischer and Sebastian Ebers},
  	publisher = {Birkh{\"a}user Verlag},
  	year = "2011",
  	booktitle = "Organic Computing - A Paradigm Shift for Complex Systems ",
  	chapter = "5"
  }
  
  

2009

• Jinghua Groppe and Sven Groppe and Sebastian Ebers and Volker Linnemann,: Efficient Processing of SPARQL Joins in Memory by Dynamically Restricting Triple Patterns,. in Proceedings of the 24th ACM Symposium on Applied Computing (ACM SAC 2009),, pp. 1231-1238,, ACM,, Honolulu, Hawaii, USA,, March 8 - 12,, 2009,
  

  @InProceedings{ GrGrEb09,
  	author = "Jinghua Groppe and Sven Groppe and Sebastian Ebers and Volker Linnemann",
  	title = "{Efficient Processing of SPARQL Joins in Memory by Dynamically Restricting Triple Patterns}",
  	booktitle = "Proceedings of the 24th ACM Symposium on Applied Computing (ACM SAC 2009)",
  	year = "2009",
  	month = "March 8 - 12",
  	address = "Honolulu, Hawaii, USA",
  	pages = "1231--1238",
  	publisher = "ACM",
  	isbn = "978-1-60558-166-8",
  	doi = "http://doi.acm.org/10.1145/1529282.1529560",
  	bibsource = {IFIS, Universit{\"a}t zu L{\"u}beck},
  	copyright = "ACM"
  }