Document 875
Hoffman, O. 1984. Bird Strikes to German Registered Civil Aircraft in 1983, which Caused High Repair Costs.. Proceedings of the International Bird Strike Committee, Rome, Italy IBSC17/WP11:165-166.
Hoffman, O. 1984. Bird Strikes to German Registered Civil Aircraft in 1983, which Caused High Repair Costs.. Proceedings of the International Bird Strike Committee, Rome, Italy IBSC17/WP11:165-166.