1. European Space Agency (ESA): Requirements on Space Debris Mitigation for ESA Projects 2009.
http://iadc-online.org/References/Docu/ESA\%20Requirements\%20for\%20Space\%20Debris\%20Mitigation.pdf
2. NASA Headquarters Office of Safety and Mission Assurance: NASA Technical Standard: Process for Limiting Orbital Debris. National Aeronautics and Space Administration NASA-STD 8719.14, Washington DC (USA), (2011)
http://www.hq.nasa.gov/office/codeq/doctree/871914.pdf
3. Steering Group: Key Definitions of the Inter-Agency Space Debris Coordination Committee (IADC). Inter-Agency Space Debris Coordination Committee (IADC) IADC-13-02 (2013)
http://www.iadc-online.org/Documents/IADC-2013-02,\%20IADC\%20Key\%20Definitions.pdf
4. Piemonte R: CApture and DE-orbiting Technologies (CADET) project.
http://web.aviospace.com/cadet/index.php/obj
5. Kessler D: Collisional cascading: The limits of population growth in low earth orbit. Adv. Space Res 1991, 11(12):63-66. 10.1016/0273-1177(91)90543-S