1. Bailey, M.E., Where Have All the Comets Gone?, Science, 2002, vol. 296, pp. 2151–2153.
2. Bottke, W.F., Morbidelli, A., Jedicke, R., et al., Debiased Orbital and Absolute Magnitude Distribution of the Near-Earth Objects, Icarus, 2002, vol. 156, pp. 399–433.
3. Defending Planet Earth: Near-Earth Object Surveys, Committee to Review Near-Earth Object Surveys and Hazard Mitigation Strategies, The National Acad. Press, 2010.
4. Emel’yanenko, V.V., Motion of Meteor Swarms near Commensurabilities with Jupiter, Pis’ma Astron. Zh., 1988, vol. 14, pp. 651–658.
5. Emel’yanenko, V.V., Short-Period Comets: Origin and Terrestrial Impact Hazard, in Protecting the Earth against Collisions with Asteroids and Comet Nuclei, Finkelstein, A., Huebner, W., and Shor, V., Eds., St. Petersburg: Nauka, 2010, pp. 120–128.