Birdstrikes During 1987.
Bakker, C. 1988. Birdstrikes During 1987. Proceedings of the International Bird Strike Committee, Madrid, Spain IBSC19/WP36:573-579.
Bakker, C. 1988. Birdstrikes During 1987. Proceedings of the International Bird Strike Committee, Madrid, Spain IBSC19/WP36:573-579.
