1. Micrometeorid Hazard;ESA SP-153,1979
2. “The Comet Halley Dust Cas Environment”, Proceedings of a Joing NASA/ESA Working Group Meeting, ESA SP-174
3. Comet Bennett 1970 II
4. Problems of Hydrodynamics and Continuum Mechanics;Probstein,1968
5. On Encounter with Comet Hallay in 1968 (Strategy of Studying);Sagdeev,1981