U.S.-USSR Workshop on High-Energy Astrophysics Institute for Space Research and Abastumani Laboratory and Observatory, Akademii͡a nauk SSSR, National Academy of Sciences (U.S.), Lewin, W. H. G., Clark, G. W., Si͡uni͡aev, R. A., . . . Abramson, D. M. (1991). High-energy astrophysics: American and Soviet perspectives : proceedings from the U.S.-USSR Workshop on High-Energy Astrophysics, June 18-July 1, 1989. National Academy Press.

U.S.-USSR Workshop on High-Energy Astrophysics Institute for Space Research and Abastumani Laboratory and Observatory, Akademii͡a nauk SSSR, National Academy of Sciences (U.S.), Walter H. G. Lewin, George W. Clark, R. A. Si͡uni͡aev, Kathleen Kearney Trivers, and David M. Abramson. High-energy Astrophysics: American and Soviet Perspectives : Proceedings from the U.S.-USSR Workshop on High-Energy Astrophysics, June 18-July 1, 1989. Washington, D.C.: National Academy Press, 1991.

U.S.-USSR Workshop on High-Energy Astrophysics Institute for Space Research and Abastumani Laboratory and Observatory, et al. High-energy Astrophysics: American and Soviet Perspectives : Proceedings from the U.S.-USSR Workshop on High-Energy Astrophysics, June 18-July 1, 1989. National Academy Press, 1991.