Document 1483
Shergalin, J. E. 1990. Results of Ornithofauna Study at Some Soviet Airfields 1972-1988. Proceedings of the International Bird Strike Committee, Helsinki, Finland IBSC20/WP21. 6 pages.
Shergalin, J. E. 1990. Results of Ornithofauna Study at Some Soviet Airfields 1972-1988. Proceedings of the International Bird Strike Committee, Helsinki, Finland IBSC20/WP21. 6 pages.
