@article{KowalskiLinderZierkeetal.2016,
  author    = {Kowalski, Julia and Linder, Peter and Zierke, S. and Wulfen, B. van and Clemens, J. and Konstantinidis, K. and Ameres, G. and Hoffmann, R. and Mikucki, J. and Tulaczyk, S. and Funke, O. and Blandfort, D. and Espe, Clemens and Feldmann, Marco and Francke, Gero and Hiecker, S. and Plescher, Engelbert and Sch{\"o}ngarth, Sarah and Dachwald, Bernd and Digel, Ilya and Artmann, Gerhard and Eliseev, D. and Heinen, D. and Scholz, F. and Wiebusch, C. and Macht, S. and Bestmann, U. and Reineking, T. and Zetzsche, C. and Schill, K. and F{\"o}rstner, R. and Niedermeier, H. and Szumski, A. and Eissfeller, B. and Naumann, U. and Helbing, K.},
  title     = {Navigation technology for exploration of glacier ice with maneuverable melting probes},
  series = {Cold Regions Science and Technology},
  journal   = {Cold Regions Science and Technology},
  number    = {123},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0165-232X},
  doi       = {10.1016/j.coldregions.2015.11.006},
  pages     = {53 -- 70},
  year      = {2016},
  abstract  = {The Saturnian moon Enceladus with its extensive water bodies underneath a thick ice sheet cover is a potential candidate for extraterrestrial life. Direct exploration of such extraterrestrial aquatic ecosystems requires advanced access and sampling technologies with a high level of autonomy. A new technological approach has been developed as part of the collaborative research project Enceladus Explorer (EnEx). The concept is based upon a minimally invasive melting probe called the IceMole. The force-regulated, heater-controlled IceMole is able to travel along a curved trajectory as well as upwards. Hence, it allows maneuvers which may be necessary for obstacle avoidance or target selection. Maneuverability, however, necessitates a sophisticated on-board navigation system capable of autonomous operations. The development of such a navigational system has been the focal part of the EnEx project. The original IceMole has been further developed to include relative positioning based on in-ice attitude determination, acoustic positioning, ultrasonic obstacle and target detection integrated through a high-level sensor fusion. This paper describes the EnEx technology and discusses implications for an actual extraterrestrial mission concept.},
  language  = {en}
}
@article{MathiakWillneckerPlescher2005,
  author    = {Mathiak, Gerhard and Willnecker, Rainer and Plescher, Engelbert},
  title     = {Vibrational effects on diffusion experiments},
  series = {Microgravity science and technology : international journal for microgravity research and applications},
  volume    = {Vol. 15},
  journal   = {Microgravity science and technology : international journal for microgravity research and applications},
  number    = {No. 1},
  issn      = {0938-0108},
  pages     = {295 -- 300},
  year      = {2005},
  language  = {en}
}
@article{MathiakPlescherWillnecker2005,
  author    = {Mathiak, Gerhard and Plescher, Engelbert and Willnecker, Rainer},
  title     = {Liquid metal diffusion experiments in microgravity - Vibrational effects},
  series = {Measurement science and technology},
  volume    = {Vol. 16},
  journal   = {Measurement science and technology},
  number    = {No. 2},
  issn      = {0957-0233},
  doi       = {10.1088/0957-0233/16/2/003},
  pages     = {336},
  year      = {2005},
  language  = {en}
}
@article{KraemerDaabMuelleretal.2013,
  author    = {Kr{\"a}mer, Stefan and Daab, Dominique Jonas and M{\"u}ller, Brigitte and Wagner, Tobias and Baader, Fabian and Hessel, Joana and Gdalewitsch, Georg and Plescher, Engelbert and Dachwald, Bernd and Wahle, Michael and Gierse, Andreas and Vetter, Rudolf and Pf{\"u}tzenreuter, Lysan},
  title     = {Development and flight-testing of a system to isolate vibrations for microgravity experiments on sounding rockets},
  series = {21st ESA Symposium on Rocket and Balloon Research},
  journal   = {21st ESA Symposium on Rocket and Balloon Research},
  pages     = {1 -- 8},
  year      = {2013},
  language  = {en}
}
@article{LeyPlescherScholzetal.2007,
  author    = {Ley, Wilfried and Plescher, Engelbert and Scholz, Artur and Piepenbrock, Johannes},
  title     = {COMPASS-1 picosatellite project / Ley, Wilfried ; Plescher, Engelbert ; Scholz, Artur ; Piepenbrock, Johannes},
  series = {Small satellites for earth observation : digest of the 6th International symposium of the International Academy of Astronautics, Berlin, April 23 - 26, 2007 / ed. by Rainer Sandau; Hans-Peter R{\"o}ser; Arnoldo Valenzuela},
  journal   = {Small satellites for earth observation : digest of the 6th International symposium of the International Academy of Astronautics, Berlin, April 23 - 26, 2007 / ed. by Rainer Sandau; Hans-Peter R{\"o}ser; Arnoldo Valenzuela},
  publisher = {Wissenschaft und Technik Verl.},
  address   = {Berlin},
  isbn      = {9783896855718},
  pages     = {147 -- 150},
  year      = {2007},
  language  = {en}
}