Document 891
Houghton, E.W. 1968. Research on the Radar Properties of Birds in the United Kingdom. Proceedings of Bird Strike Committee Europe. BSCE3-Appendix 8. Brussels, Belgium. 6 pages.
Houghton, E.W. 1968. Research on the Radar Properties of Birds in the United Kingdom. Proceedings of Bird Strike Committee Europe. BSCE3-Appendix 8. Brussels, Belgium. 6 pages.
