Document 1400
Ruiz, J. 1988. Present State of Bird Strike Hazards at Spanish Airports. Proceedings of the International Bird Strike Committee, Madrid, Spain IBSC19/WP21:313-328.
Ruiz, J. 1988. Present State of Bird Strike Hazards at Spanish Airports. Proceedings of the International Bird Strike Committee, Madrid, Spain IBSC19/WP21:313-328.
