Proceedings of the Second European Conference on Space Debris : ESOC, Darmstadt, Germany, 17-19 March 1997. pp.411-416, 1997. Noordwijk, The Netherlands. ESA Publications Division
Proceedings of the Second European Conference on Space Debris : ESOC, Darmstadt, Germany, 17-19 March 1997. pp.445-448, 1997. Noordwijk, The Netherlands. ESA Publications Division
Proceedings of the third European Conference on Space Debris, 19-21 March 2001, European Space Operations Centre (ESOC), Darmstadt, Germany. 1 pp.25-32, 2001. Noordwijk, The Netherlands. ESA Publications Division
Proceedings of the Second European Conference on Space Debris : ESOC, Darmstadt, Germany, 17-19 March 1997. pp.25-30, 1997. Noordwijk, The Netherlands. ESA Publications Division