Document 1486
Shergalin, J.E. 1992. Soviet bibliography about aviation and radar ornithology 1990-1991. Proceedings of the International Bird Strike Committee, Jerusalem, Israel IBSC21/WP30:287-290.
Shergalin, J.E. 1992. Soviet bibliography about aviation and radar ornithology 1990-1991. Proceedings of the International Bird Strike Committee, Jerusalem, Israel IBSC21/WP30:287-290.
