(2) C. Wiedemann and P. Wegener, &quot; Internal report on new space debris sources; RORSAT droplet generation &quot; (IFR/TUBS, 1997), unpublished.
2. C. Wiedemann, et P. Wegener, “Internal report on new space debris sources; RORSAT droplet generation” (IFR/TUBS 1997), non publié.