1. Committee to review near-Earth object surveys and hazard mitigation strategies, in Defending Planet Earth: Near-Earth Object Surveys, The National Acad. Press, 2010.
2. Emel’yanenko, V.V., Naroenkov, S.A., Shustov, B.M., Distribution of the near-Earth objects, Solar Syst. Res., 2011, vol. 45, no. 6, pp. 498–503.
3. Krivonogov, A.V., Mel’nikov, A.V., and Kholshevnikov, K.V., Distribution function for meteoroids velocities, Vestn. St. Petersburg Univ., 1998, no. 3, pp. 142–145.
4. Naroenkov, S.A., Shustov, B.M., and Emel’yanenko, V.V., On observation arc length of small body in the Solar system, which is sufficient to classify it as a dangerous, Kosmich. Issled., 2013 (in press).
5. Naroenkov, S.A. and Shustov, B.M., Velocity Distribution for potentially dangerous objects, Kosm. Issl., 2012, vol. 50, no. 3, pp. 229–233.