Bird-Airplane Collisions at Low Altitudes- Planned Preventive Actions of the Swedish Airforce
Gezelius, J. O. and T. Alerstam. 1972. Bird-Airplane Collisions at Low Altitudes- Planned Preventive Actions of the Swedish Airforce. Proceedings of the Bird Strike Committee Europe. BSCE7-2.10. London, England. 8 pages.
