1. Automated Rendezvous and Docking of Spacecraft;Fehse,2003
2. P. Laquale, 50 anni di missioni spaziali, Astronomia, 2007.
3. Wikipedia, Kosmos 186 and Kosmos 188, 2012 (online). Accessed 13.06.12.
4. A. Tatsch, N. Fitz-Coy, S. Gladun, On-orbit servicing: a brief survey, in: Proceedings of the IEEE International Workshop on Safety, Security, and Rescue Robotics, 2006.
5. On-Orbit Satellite Servicing Study, Project Report, NASA, 2010.