1. D. Kessler and B. Cour-Palais. “Collision Frequency of Artificial Satellites: The Creation of a Debris Belt”. Journal of Geophysical Research, Vol. 83, No. A6, 2637-2646 (1978).
2. M. Williamson. “Space Junk makes an Impact”, IEE Review, Vol. 52, No. 1, 40-44 (2006).
3. D. Merholz et al. Detecting, Tracking and Imaging Space Debris, ESA Bulletin, No 109, 128-134 (2002).
4. J. Ender et al. Radar techniques for space situational awareness, International Radar Symposium, 21-26 (2011).
5. M. Czerwinski and J. Usoff. “Development of the Haystack Ultrawideband Satellite Imaging Radar”, Lincoln Laboratory Journal, Vol. 21, No. 1, 28-44 (2014).