1. Space Debris Mitigation Guidelines;IADC. IADC,2002
2. Risk to space sustainability from large constellations of satellites;Bastida Virgili;Acta Astronaut.,2016
3. ESA's Annual Space Environment Report. Technical Report;ESA Space Debris Office,2018
4. Space traffic management through the control of the space environment's capacity;Krag,2017
5. Ranking and characterization of heavy debris for active removal;Utzmann,2012