FLAPPING FLIGHT

[11] ADAPTATIONS AND COMPARATIVE ANATOMY OF THE LOCOMOTOR APPARATUS OF NEW WORLD VULTURES [J]. AMERICAN MIDLAND NATURALIST, 1946, 35 (03) : 545 - 727

[12] Fullerton JD., 1925, Journal of the Royal Aeronautical Society, V29, P535

[13] GNOSSPELIUS OF, 1925, JR AERONAUT SOC, V29, P543

[14] Graham R. R., 1930, British Birds, V24, P2

[15] GRAHAM RR, 1930, BRIT BIRDS, V24, P58

[16] GRAHAM RR, 1930, BRIT BIRDS, V24, P34

[17] Guidi G, 1938, J R AERONAUT SOC, V42, P1104

[18] HANDLEYPAGE F, 1921, JR AERO SOC, V25, P263

[19] Hankin EH, 1923, P CAMB PHILOS SOC, V21, P424

[20] HANKIN EH, 1914, ANIMAL FLIGHT

[11] ADAPTATIONS AND COMPARATIVE ANATOMY OF THE LOCOMOTOR APPARATUS OF NEW WORLD VULTURES [J]. AMERICAN MIDLAND NATURALIST, 1946, 35 (03) : 545 - 727

[12] Fullerton JD., 1925, Journal of the Royal Aeronautical Society, V29, P535

[13] GNOSSPELIUS OF, 1925, JR AERONAUT SOC, V29, P543

[14] Graham R. R., 1930, British Birds, V24, P2

[15] GRAHAM RR, 1930, BRIT BIRDS, V24, P58

[16] GRAHAM RR, 1930, BRIT BIRDS, V24, P34

[17] Guidi G, 1938, J R AERONAUT SOC, V42, P1104

[18] HANDLEYPAGE F, 1921, JR AERO SOC, V25, P263

[19] Hankin EH, 1923, P CAMB PHILOS SOC, V21, P424

[20] HANKIN EH, 1914, ANIMAL FLIGHT