Publication
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Ornithologie van Nederland 1972 Article
Limosa, 47(2), 33-50.January 1974
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Over terreingebruik, verstoringen en voedsel van Grauwe ganzen Anser Anser in een brak getijdengebied Article
Limosa, 47(4), 121-143.January 1974
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Dr. phil. Douglas St. Quentin zum 75. Geburtstag Article
Odonatologica, 3(1), 1-4.January 1974
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The development of odonatology in the Far East Article
Odonatologica, 3(1), 5-12.January 1974
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Colour change and maturation in Brachythemis leucosticta (Burmeister) (Anisoptera: Libellulidae) Article
Odonatologica, 3(1), 13-20.January 1974
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Studies on the behaviour and ecology of Nesciothemis nigeriensis Gambles (Anisoptera: Libellulidae) Article
Odonatologica, 3(1), 21-47.January 1974
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Nouveaux aspects du contrôle hormonal du cycle biologique des Odonates: recherches sur la larve d’Aeshna cyanea (Müller) (Anisoptera: Aeshnidae) Article
Odonatologica, 3(1), 49-62.January 1974
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A critical study of Gomphus modestus Needham, 1942, with notes on related species (Anisoptera: Gomphidae) Article
Odonatologica, 3(1), 63-73.January 1974