1. The criticality of spacecraft index;Rossi;Adv. Space Res.,2015
2. Assessment of breakup severity on operational satellites;Letizia;Adv. Space Res.,2016
3. Cnes space sustainability index;Omaly,2021
4. A quantitative evaluation of the environmental impact of the mega constellations;Rossi,2017
5. Identifying the 50 statistically-most-concerning derelict objects in LEO;McKnight;Acta Astronaut.,2021