Citing OpenSky Network

 If you create a publication (including web pages, papers published by a third party, and publicly available presentations) using data from the OpenSky Network data set, you should cite us as follows:

The OpenSky Network, https://opensky-network.org

or cite the original OpenSky paper

Matthias Schäfer, Martin Strohmeier, Vincent Lenders, Ivan Martinovic and Matthias Wilhelm.
"Bringing Up OpenSky: A Large-scale ADS-B Sensor Network for Research".
In Proceedings of the 13th IEEE/ACM International Symposium on Information Processing in Sensor Networks (IPSN), pages 83-94, April 2014.

Publications using the OpenSky Network

The following list contains publications from research using OpenSky Network data. The purpose of this list is to provide insights into past uses of OpenSky Network data.

  1. [Smith18] Matthew Smith, Daniel Moser, Martin Strohmeier, Vincent Lenders and Ivan Martinovic.
    Undermining Privacy in the Aircraft Communications Addressing and Reporting System (ACARS).
    In Privacy Enhancing Technologies Symposium (PoPETS).
    July 2018.
    URL BibTeX

    @inproceedings{Smith18,
    	title = "Undermining Privacy in the Aircraft Communications Addressing and Reporting System (ACARS)",
    	author = "Matthew Smith and Daniel Moser and Martin Strohmeier and Vincent Lenders and Ivan Martinovic",
    	year = 2018,
    	month = "jul",
    	booktitle = "Privacy Enhancing Technologies Symposium (PoPETS)",
    	url = "https://petsymposium.org/2018/files/papers/issue3/popets-2018-0023.pdf"
    }
    
  2. [Jansen18] Kai Jansen, Matthias Schäfer, Daniel Moser, Vincent Lenders, Christina Pöpper and Jens Schmitt.
    Crowd-GPS-Sec: Leveraging Crowdsourcing to Detect and Localize GPS Spoofing Attacks.
    In IEEE Symposium on Security and Privacy (S&P).
    May 2018.
    URL BibTeX

    @inproceedings{Jansen18,
    	title = "Crowd-GPS-Sec: Leveraging Crowdsourcing to Detect and Localize GPS Spoofing Attacks",
    	author = "Kai Jansen and Matthias Schäfer and Daniel Moser and Vincent Lenders and Christina Pöpper and Jens Schmitt",
    	year = 2018,
    	month = "may",
    	booktitle = "IEEE Symposium on Security and Privacy (S&P)",
    	url = "http://lenders.ch/publications/conferences/sp18_2.pdf"
    }
    
  3. [Strohmeier18c] Martin Strohmeier, Matthew Smith, Daniel Moser, Matthias Schäfer, Vincent Lenders and Ivan Martinovic.
    Utilizing Air Traffic Communications for OSINT on State and Government Aircraft.
    In NATO CCD COE 10th International Conference on Cyber Conflict (CyCon).
    May 2018.
    URL BibTeX

    @inproceedings{Strohmeier18c,
    	title = "Utilizing Air Traffic Communications for OSINT on State and Government Aircraft",
    	author = "Martin Strohmeier and Matthew Smith and Daniel Moser and Matthias Schäfer and Vincent Lenders and Ivan Martinovic",
    	year = 2018,
    	month = "may",
    	booktitle = "NATO CCD COE 10th International Conference on Cyber Conflict (CyCon)",
    	url = "https://opensky-network.org/files/publications/cycon18_1.pdf"
    }
    
  4. [Trueb18] Roman Trüb, Daniel Moser, Matthias Schäfer, Rui Pinheiro and Vincent Lenders.
    Monitoring Meteorological Parameters With Crowdsourced Air Traffic Control Data.
    In ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN).
    April 2018.
    URL BibTeX

    @inproceedings{Trueb18,
    	title = "Monitoring Meteorological Parameters With Crowdsourced Air Traffic Control Data",
    	author = "Roman Trüb and Daniel Moser and Matthias Schäfer and Rui Pinheiro and Vincent Lenders",
    	year = 2018,
    	month = "apr",
    	booktitle = "ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN)",
    	series = "{IPSN}",
    	url = "http://www.lenders.ch/publications/conferences/IPSN18_3.pdf"
    }
    
  5. [Calvo18] Roberto Calvo-Palomino, Fabio Ricciato, Blaz Repas, Domenico Giustiniano and Vincent Lenders.
    Nanosecond-precision Time-of-Arrival Estimation for Aircraft Signals with low-cost SDR Receivers.
    In ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN).
    April 2018.
    URL BibTeX

    @inproceedings{Calvo18,
    	title = "Nanosecond-precision Time-of-Arrival Estimation for Aircraft Signals with low-cost SDR Receivers",
    	author = "Roberto Calvo-Palomino and Fabio Ricciato and Blaz Repas and Domenico Giustiniano and Vincent Lenders",
    	year = 2018,
    	month = "apr",
    	booktitle = "ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN)",
    	series = "{IPSN}",
    	url = "http://www.lenders.ch/publications/conferences/IPSN18_1.pdf"
    }
    
  6. [Strohmeier18b] Martin Strohmeier, Matthew Smith, Vincent Lenders and Ivan Martinovic.
    The Real First Class? Inferring Confidential Corporate Mergers and Government Relations from Air Traffic Communication.
    In IEEE European Symposium on Security and Privacy (EuroS&P).
    April 2018.
    URL BibTeX

    @inproceedings{Strohmeier18b,
    	title = "The Real First Class? Inferring Confidential Corporate Mergers and Government Relations from Air Traffic Communication",
    	author = "Martin Strohmeier and Matthew Smith and Vincent Lenders and Ivan Martinovic",
    	year = 2018,
    	month = "apr",
    	booktitle = "IEEE European Symposium on Security and Privacy (EuroS&P)",
    	url = "http://www.cs.ox.ac.uk/files/9919/eurosnp.pdf"
    }
    
  7. [Strohmeier18a] Martin Strohmeier, Vincent Lenders and Ivan Martinovic.
    A k-NN-based Localization Approach for Crowdsourced Air Traffic Communication Networks.
    IEEE Transactions on Aerospace and Electronic Systems 56(1),
    January 2018.
    URL BibTeX

    @article{Strohmeier18a,
    	title = "A k-NN-based Localization Approach for Crowdsourced Air Traffic Communication Networks",
    	author = "Martin Strohmeier and Vincent Lenders and Ivan Martinovic",
    	month = "January",
    	year = 2018,
    	journal = "IEEE Transactions on Aerospace and Electronic Systems",
    	volume = 56,
    	number = 1,
    	url = "http://ieeexplore.ieee.org/document/8268121/"
    }
    
  8. [Elmarady17] Ahmed Abdel Wahab El Marady.
    Enhancing accuracy and security of ADS-B via MLAT assisted-flight information system.
    In Computer Engineering and Systems (ICCES), 2017 12th International Conference on.
    December 2017, 182–187.
    URL BibTeX

    @inproceedings{Elmarady17,
    	title = "Enhancing accuracy and security of ADS-B via MLAT assisted-flight information system",
    	author = "El Marady, Ahmed Abdel Wahab",
    	booktitle = "Computer Engineering and Systems (ICCES), 2017 12th International Conference on",
    	pages = "182--187",
    	year = 2017,
    	month = "December",
    	organization = "IEEE",
    	url = "http://ieeexplore.ieee.org/abstract/document/8275300/"
    }
    
  9. [Martinez17] M A Martínez-Prieto, A Bregon, I García-Miranda, P C Álvarez-Esteban, F Díaz and D Scarlatti.
    Integrating Flight-related Information into a (Big) Data Lake.
    In IEEE/AIAA 36th Digital Avionics Systems Conference.
    September 2017.
    URL BibTeX

    @inproceedings{Martinez17,
    	author = "M. A. Martínez-Prieto and A. Bregon and I. García-Miranda and P. C. Álvarez-Esteban and F. Díaz and D. Scarlatti",
    	booktitle = "IEEE/AIAA 36th Digital Avionics Systems Conference",
    	title = "Integrating Flight-related Information into a (Big) Data Lake",
    	year = 2017,
    	series = "{DASC}",
    	month = "Sep",
    	url = "http://ieeexplore.ieee.org/document/8102023/"
    }
    
  10. [Schaefer17a] Matthias Schäfer, Martin Strohmeier, Matthew Smith, Markus Fuchs, Vincent Lenders, Marc Liechti and Ivan Martinovic.
    OpenSky Report 2017: Mode S and ADS-B Usage of Military and other State Aircraft.
    In IEEE/AIAA 36th Digital Avionics Systems Conference.
    September 2017.
    URL BibTeX

    @inproceedings{Schaefer17a,
    	title = "OpenSky Report 2017: Mode S and ADS-B Usage of Military and other State Aircraft",
    	author = "Matthias Schäfer and Martin Strohmeier and Matthew Smith and Markus Fuchs and Vincent Lenders and Marc Liechti and Ivan Martinovic",
    	year = 2017,
    	month = "sep",
    	booktitle = "IEEE/AIAA 36th Digital Avionics Systems Conference",
    	series = "{DASC}",
    	url = "https://opensky-network.org/files/publications/dasc17.pdf"
    }
    
  11. [Strohmeier2017b] Martin Strohmeier, Matthew Smith, Matthias Schäfer, Vincent Lenders and Ivan Martinovic.
    Crowdsourcing Security for Wireless Air Traffic Communications.
    In Proceedings of the 9th International Conference on Cyber Conflict (CYCON).
    June 2017.
    URL BibTeX

    @inproceedings{Strohmeier2017b,
    	title = "Crowdsourcing Security for Wireless Air Traffic Communications",
    	author = "Strohmeier, Martin and Smith, Matthew and Schäfer, Matthias and Lenders, Vincent and Martinovic, Ivan",
    	year = 2017,
    	booktitle = "{Proceedings of the 9th International Conference on Cyber Conflict (CYCON)}",
    	month = "jun",
    	url = "http://www.cs.ox.ac.uk/files/9099/CyCon_2017_Strohmeier_Smith_Schaefer_Lenders_Martinovic.pdf",
    	organization = "IEEE"
    }
    
  12. [Strohmeier17a] Martin Strohmeier.
    Large-scale Analysis of Aircraft Transponder Data.
    IEEE Aerospace and Electronic Systems Magazine 32(1):42-44,
    January 2017.
    URL BibTeX

    @article{Strohmeier17a,
    	title = "{Large-scale Analysis of Aircraft Transponder Data}",
    	author = "Strohmeier, Martin",
    	year = 2017,
    	issn = "0885-8985",
    	journal = "IEEE Aerospace and Electronic Systems Magazine",
    	month = "jan",
    	number = 1,
    	pages = "42-44",
    	publisher = "IEEE",
    	url = "http://ieeexplore.ieee.org/document/7885340/",
    	volume = 32
    }
    
  13. [Smith2017] Matthew Smith, Daniel Moser, Martin Strohmeier, Vincent Lenders and Ivan Martinovic.
    Analyzing Privacy Breaches in the Aircraft Communications Addressing and Reporting System (ACARS).
    arXiv preprint arXiv:1705.07065,
    2017.
    URL BibTeX

    @article{Smith2017,
    	title = "Analyzing Privacy Breaches in the Aircraft Communications Addressing and Reporting System (ACARS)",
    	author = "Smith, Matthew and Moser, Daniel and Strohmeier, Martin and Lenders, Vincent and Martinovic, Ivan",
    	journal = "arXiv preprint arXiv:1705.07065",
    	year = 2017,
    	url = "https://arxiv.org/abs/1705.07065"
    }
    
  14. [RenzWieland16] Alexander Renz-Wieland and Hugo Wallenburg.
    Airport quality: holding and go-arounds.
    Centrum Wiskunde & Informatica (CWI), Amsterdam,
    2016.
    PDF BibTeX

    @techreport{RenzWieland16,
    	author = "Alexander Renz-Wieland and Hugo Wallenburg",
    	title = "Airport quality: holding and go-arounds",
    	booktitle = "Large Scale Data Engineering Course (LSDE)",
    	year = 2016,
    	institution = "Centrum Wiskunde & Informatica (CWI), Amsterdam",
    	pdf = "http://event.cwi.nl/lsde/2016/group8.pdf"
    }
    
  15. [Schaefer16a] Matthias Schäfer, Patrick Leu, Vincent Lenders and Jens Schmitt.
    Secure Motion Verification using the Doppler Effect.
    In Proceedings of the 9th ACM Conference on Security & Privacy in Wireless and Mobile Networks.
    2016.
    PDF BibTeX

    @inproceedings{Schaefer16a,
    	author = "Schäfer, Matthias and Leu, Patrick and Lenders, Vincent and Schmitt, Jens",
    	title = "Secure Motion Verification using the Doppler Effect",
    	booktitle = "Proceedings of the 9th ACM Conference on Security & Privacy in Wireless and Mobile Networks",
    	series = "WiSec '16",
    	pdf = "https://opensky-network.org/files/publications/schaefer16a.pdf",
    	year = 2016
    }
    
  16. [Schaefer16b] Matthias Schäfer, Martin Strohmeier, Matthew Smith, Markus Fuchs, Rui Pinheiro, Vincent Lenders and Ivan Martinovic.
    OpenSky Report 2016: Facts and Figures on SSR Mode S and ADS-B Usage.
    In IEEE/AIAA 35th Digital Avionics Systems Conference.
    2016.
    URL BibTeX

    @inproceedings{Schaefer16b,
    	title = "OpenSky Report 2016: Facts and Figures on SSR Mode S and ADS-B Usage",
    	author = "Schäfer, Matthias and Strohmeier, Martin and Smith, Matthew and Fuchs, Markus and Pinheiro, Rui and Lenders, Vincent and Martinovic, Ivan",
    	year = 2016,
    	booktitle = "IEEE/AIAA 35th Digital Avionics Systems Conference",
    	series = "{DASC}",
    	url = "https://opensky-network.org/files/publications/dasc2016.pdf"
    }
    
  17. [Baker2016] Richard Baker and Ivan Martinovic.
    Secure Location Verification with a Mobile Receiver.
    In Proceedings of the 2nd ACM Workshop on Cyber-Physical Systems Security and Privacy.
    2016, 35–46.
    URL BibTeX

    @inproceedings{Baker2016,
    	title = "Secure Location Verification with a Mobile Receiver",
    	author = "Baker, Richard and Martinovic, Ivan",
    	booktitle = "Proceedings of the 2nd ACM Workshop on Cyber-Physical Systems Security and Privacy",
    	pages = "35--46",
    	year = 2016,
    	organization = "ACM",
    	url = "http://dl.acm.org/citation.cfm?id=2994497"
    }
    
  18. [DiBernardoSleiman16] Gabriele Di Bernardo and Sleiman Sleiman.
    Cause for Emergency.
    Centrum Wiskunde & Informatica (CWI), Amsterdam,
    2016.
    PDF BibTeX

    @techreport{DiBernardoSleiman16,
    	author = "Gabriele Di Bernardo and Sleiman Sleiman",
    	title = "Cause for Emergency",
    	booktitle = "Large Scale Data Engineering Course (LSDE)",
    	year = 2016,
    	institution = "Centrum Wiskunde & Informatica (CWI), Amsterdam",
    	pdf = "http://event.cwi.nl/lsde/2016/papers/group11.pdf"
    }
    
  19. [GankemaBecher16] Richard Gankema and Oliver Becher.
    Spatial Analysis of ADS-B Messages to Identify Rescue Helicopters Using Spark.
    Centrum Wiskunde & Informatica (CWI), Amsterdam,
    2016.
    PDF BibTeX

    @techreport{GankemaBecher16,
    	author = "Richard Gankema and Oliver Becher",
    	title = "Spatial Analysis of ADS-B Messages to Identify Rescue Helicopters Using Spark",
    	booktitle = "Large Scale Data Engineering Course (LSDE)",
    	year = 2016,
    	institution = "Centrum Wiskunde & Informatica (CWI), Amsterdam",
    	pdf = "http://event.cwi.nl/lsde/2016/papers/group09.pdf"
    }
    
  20. [SestiniDalBianco16] Filippo Sestini and Davide Dal Bianco.
    Flight clustering for route detection and CO2 emissions.
    Centrum Wiskunde & Informatica (CWI), Amsterdam,
    2016.
    PDF BibTeX

    @techreport{SestiniDalBianco16,
    	author = "Filippo Sestini and Davide Dal Bianco",
    	title = "Flight clustering for route detection and CO2 emissions",
    	booktitle = "Large Scale Data Engineering Course (LSDE)",
    	year = 2016,
    	institution = "Centrum Wiskunde & Informatica (CWI), Amsterdam",
    	pdf = "http://event.cwi.nl/lsde/2016/papers/group01.pdf"
    }
    
  21. [Moser16] Daniel Moser, Patrick Leu, Vincent Lenders, Aanjhan Ranganathan, Fabio Ricciato and Srdjan Capkun.
    Investigation of Multi-device Location Spoofing Attacks on Air Traffic Control and Possible Countermeasures.
    In ACM Conference on Mobile Computing and Networking.
    2016.
    URL BibTeX

    @inproceedings{Moser16,
    	title = "Investigation of Multi-device Location Spoofing Attacks on Air Traffic Control and Possible Countermeasures",
    	author = "Daniel Moser and Patrick Leu and Vincent Lenders and Aanjhan Ranganathan and Fabio Ricciato and Srdjan Capkun",
    	year = 2016,
    	booktitle = "ACM Conference on Mobile Computing and Networking",
    	series = "{MOBICOM}",
    	url = "http://lenders.ch/publications/conferences/mobicom16.pdf"
    }
    
  22. [Strohmeier] Martin Strohmeier.
    Security in Next Generation Air Traffic Communication Networks.
    University of Oxford

    2016.
    URL BibTeX

    @phdthesis{Strohmeier,
    	title = "Security in Next Generation Air Traffic Communication Networks",
    	author = "Strohmeier, Martin",
    	year = 2016,
    	school = "University of Oxford",
    	url = "http://www.cs.ox.ac.uk/files/8693/Strohmeier%20-%20Security%20in%20Next%20Generation%20Air%20Traffic%20Communication%20Networks.pdf"
    }
    
  23. [Strohmeier15c] Martin Strohmeier and Ivan Martinovic.
    On Passive Data Link Layer Fingerprinting of Aircraft Transponders.
    In Proceedings of the 1st ACM Workshop on Cyber-Physical Systems-Security and/or PrivaCy (CPS-SPC).
    October 2015.
    PDF BibTeX

    @inproceedings{Strohmeier15c,
    	author = "Strohmeier, Martin and Martinovic, Ivan",
    	title = "On Passive Data Link Layer Fingerprinting of Aircraft Transponders",
    	booktitle = "Proceedings of the 1st ACM Workshop on Cyber-Physical Systems-Security and/or PrivaCy (CPS-SPC)",
    	year = 2015,
    	month = "October",
    	pdf = "https://opensky-network.org/files/publications/cps-spc15.pdf"
    }
    
  24. [Strohmeier15b] Martin Strohmeier, Matthias Schäfer, Markus Fuchs, Vincent Lenders and Ivan Martinovic.
    OpenSky: A Swiss Army Knife for Air Traffic Security Research.
    In Proceedings of the 34th IEEE/AIAA Digital Avionics Systems Conference.
    September 2015.
    PDF BibTeX

    @inproceedings{Strohmeier15b,
    	author = "Martin Strohmeier and Matthias Schäfer and Markus Fuchs and Vincent Lenders and Ivan Martinovic",
    	title = "OpenSky: A Swiss Army Knife for Air Traffic Security Research",
    	year = 2015,
    	month = "September",
    	booktitle = "Proceedings of the 34th IEEE/AIAA Digital Avionics Systems Conference",
    	series = "{DASC}",
    	pdf = "https://opensky-network.org/files/publications/dasc2015.pdf"
    }
    
  25. [Schaefer15] Matthias Schäfer, Vincent Lenders and Jens B Schmitt.
    Secure Track Verification.
    In IEEE Symposium on Security and Privacy (S&P).
    May 2015.
    PDF BibTeX

    @inproceedings{Schaefer15,
    	author = "Matthias Schäfer and Vincent Lenders and Jens B. Schmitt",
    	title = "{Secure Track Verification}",
    	booktitle = "IEEE Symposium on Security and Privacy (S&P)",
    	series = "S&P '15",
    	year = 2015,
    	address = "San Jose, CA, USA",
    	month = "May",
    	pdf = "https://opensky-network.org/files/publications/sp15.pdf"
    }
    
  26. [Strohmeier15a] Martin Strohmeier, Vincent Lenders and Ivan Martinovic.
    Lightweight Location Verification in Air Traffic Surveillance Networks.
    In Proceedings of the Cyber-Physical System Security Workshop (CPSS).
    April 2015.
    PDF BibTeX

    @inproceedings{Strohmeier15a,
    	author = "Martin Strohmeier and Vincent Lenders and Ivan Martinovic",
    	title = "{Lightweight Location Verification in Air Traffic Surveillance Networks}",
    	booktitle = "Proceedings of the Cyber-Physical System Security Workshop (CPSS)",
    	series = "CPSS '15",
    	year = 2015,
    	address = "Singapure",
    	month = "April",
    	pdf = "https://opensky-network.org/files/publications/cpss15.pdf"
    }
    
  27. [Wandelt15] Sebastian Wandelt and Xiaoqian Sun.
    Efficient Compression of 4D-Trajectory Data in Air Traffic Management.
    IEEE Transactions on Intelligent Transportation Systems 16(2):844-853,
    April 2015.
    PDF BibTeX

    @article{Wandelt15,
    	author = "Wandelt, Sebastian and Sun, Xiaoqian",
    	journal = "IEEE Transactions on Intelligent Transportation Systems",
    	title = "Efficient Compression of 4D-Trajectory Data in Air Traffic Management",
    	year = 2015,
    	month = "April",
    	volume = 16,
    	number = 2,
    	pages = "844-853",
    	pdf = "http://www2.informatik.hu-berlin.de/~wandelt/ITS2014.pdf"
    }
    
  28. [Strohmeier14] Martin Strohmeier, Matthias Schäfer, Vincent Lenders and Ivan Martinovic.
    Realities and Challenges of NextGen Air Traffic Management: The Case of ADS-B.
    IEEE Communications Magazine 52(5):111-118,
    May 2014.
    PDF BibTeX

    @article{Strohmeier14,
    	author = "Strohmeier, Martin and Schäfer, Matthias and Lenders, Vincent and Martinovic, Ivan",
    	journal = "IEEE Communications Magazine",
    	title = "{Realities and Challenges of NextGen Air Traffic Management: The Case of ADS-B}",
    	year = 2014,
    	volume = 52,
    	number = 5,
    	pages = "111-118",
    	month = "May",
    	pdf = "https://opensky-network.org/files/publications/commag2014.pdf"
    }
    
  29. [Schaefer14b] Matthias Schäfer, Martin Strohmeier, Vincent Lenders, Ivan Martinovic and Matthias Wilhelm.
    Demonstration Abstract: OpenSky: A Large-scale ADS-B Sensor Network for Research.
    In Proceedings of the 13th International Symposium on Information Processing in Sensor Networks.
    April 2014, 313-314.
    PDF BibTeX

    @inproceedings{Schaefer14b,
    	author = "Schäfer, Matthias and Strohmeier, Martin and Lenders, Vincent and Martinovic, Ivan and Wilhelm, Matthias",
    	title = "{Demonstration Abstract: OpenSky: A Large-scale ADS-B Sensor Network for Research}",
    	booktitle = "Proceedings of the 13th International Symposium on Information Processing in Sensor Networks",
    	series = "IPSN '14",
    	year = 2014,
    	address = "Berlin, Germany",
    	pages = "313-314",
    	month = "April",
    	pdf = "https://opensky-network.org/files/publications/ipsn2014_demo.pdf"
    }
    
  30. [Schaefer14a] Matthias Schäfer, Martin Strohmeier, Vincent Lenders, Ivan Martinovic and Matthias Wilhelm.
    Bringing Up OpenSky: A Large-scale ADS-B Sensor Network for Research.
    In Proceedings of the 13th International Symposium on Information Processing in Sensor Networks.
    April 2014, 83-94.
    PDF BibTeX

    @inproceedings{Schaefer14a,
    	author = "Schäfer, Matthias and Strohmeier, Martin and Lenders, Vincent and Martinovic, Ivan and Wilhelm, Matthias",
    	title = "{Bringing Up OpenSky: A Large-scale ADS-B Sensor Network for Research}",
    	booktitle = "Proceedings of the 13th International Symposium on Information Processing in Sensor Networks",
    	series = "IPSN '14",
    	year = 2014,
    	address = "Berlin, Germany",
    	pages = "83-94",
    	month = "April",
    	pdf = "https://opensky-network.org/files/publications/ipsn2014.pdf"
    }