COMFORT MOVEMENTS OF ANATIDAE

[51] On the formation of instinctual perceptions. III. The reflex theory of instinctual activity. [J]. NATURWISSENSCHAFTEN, 1937, 25 : 324 - 331

[52] On the formation of instinctual perceptions. [J]. NATURWISSENSCHAFTEN, 1937, 25 : 289 - 300

[53] Lorenz K., 1954, Verhandlungen der Deutschen Zoologischen Gesellschaft, P36

[54] Lorenz K., 1941, J ORNITHOL, V89, P194

[55] LORENZ K, 1959, GROUP PROCESSES, P181

[56] LORENZ K, 1953, AVIC MAG

[57] LORENZ KONRAD, 1960, JOUR ORNITHOL, V101, P50, DOI 10.1007/BF01670632

[58] THE EVOLUTION OF BEHAVIOR [J]. SCIENTIFIC AMERICAN, 1958, 199 (06) : 67 - &

[59] Madsen Harry, 1941, DANSK ORNITHOL FOREN TIDSSKR, V35, P49

[60] Madsen Harry, 1945, DANSK ORNITHOL FOREN TIDSSKR, V39, P98

[51] On the formation of instinctual perceptions. III. The reflex theory of instinctual activity. [J]. NATURWISSENSCHAFTEN, 1937, 25 : 324 - 331

[52] On the formation of instinctual perceptions. [J]. NATURWISSENSCHAFTEN, 1937, 25 : 289 - 300

[53] Lorenz K., 1954, Verhandlungen der Deutschen Zoologischen Gesellschaft, P36

[54] Lorenz K., 1941, J ORNITHOL, V89, P194

[55] LORENZ K, 1959, GROUP PROCESSES, P181

[56] LORENZ K, 1953, AVIC MAG

[57] LORENZ KONRAD, 1960, JOUR ORNITHOL, V101, P50, DOI 10.1007/BF01670632

[58] THE EVOLUTION OF BEHAVIOR [J]. SCIENTIFIC AMERICAN, 1958, 199 (06) : 67 - &

[59] Madsen Harry, 1941, DANSK ORNITHOL FOREN TIDSSKR, V35, P49

[60] Madsen Harry, 1945, DANSK ORNITHOL FOREN TIDSSKR, V39, P98