1. Stijn Lemmens and Francesca Letizia, “Environment capacity as driver for space traffic management,” IAA-UT-STM-02-05, 6th Annual Space Traffic Management Conference, University of Texas at Austin, USA.
2. Salvatore Alfano, Daniel L. Oltrogge, and Ryan Shepperd, “Leo constellation encounter and collision rate estimation: an update,” IAA-ICSSA-20-0021, 2nd IAA Conference on Space Situational Awareness (ICSSA) Washington D.C., USA.
3. Probability of collision: valuation, variability, visualization, and validity;Alfano;Acta Astronaut.,2018
4. Collision probability for rectangular cross sections;Xie,2018
5. A parametric analysis of orbital debris collision probability and maneuver rate for space vehicles;James,1992