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						Lamarck revisited Enthalten in Journal of the history of biology Bd. 5, Nr. 1, date:3.1972: 55-94
					
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						A journey to the Solomons Enthalten in Natural history Bd. 52, Nr. 1: S. 30-37, 48
					
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						A new race of Coracina Caledonica Enthalten in The auk Bd. 58, Nr. 2: S. 250
					
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						Avocet recorded for North Carolina Enthalten in The auk Bd. 52, Nr. 2: S. 185
					
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						Bird conservation problems in the Southwest Pacific Enthalten in Audubon magazine Bd. 47, Nr. 5: S. 279-282
					
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						Bird geography in the Southwest Pacific Enthalten in Audubon magazine Bd. 47, Nr. 3: S. 159-165
					
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						Bird habitats of the Southwest Pacific Enthalten in Audubon magazine Bd. 47, Nr. 4: S. 207-211
					
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						Comments on evolutionary literature Enthalten in Evolution Bd. 3, Nr. 4: S. 381-386
					
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						Criteria of subspecies, species and genera in ornithology Enthalten in New York Academy of Sciences: Annals of the New York Academy of Sciences Bd. 44, Nr. June: S. 133-139
					
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						Deutsche Ornithologen-Gesellschaft Enthalten in Journal für Ornithologie Bd. 142, 1.10.2001, Nr. 4, date:10.2001: 496-503
					
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