Document 824
Helkamo, H.; Stenman, O. and M. Vickholm. 1982. Bird Control at Helsinki-Vantaa Airport in 1978-1981. Proceedings of the International Bird Strike Committee, Moscow, Russia IBSC16/WP4. 8 pages.
Helkamo, H.; Stenman, O. and M. Vickholm. 1982. Bird Control at Helsinki-Vantaa Airport in 1978-1981. Proceedings of the International Bird Strike Committee, Moscow, Russia IBSC16/WP4. 8 pages.
