Publication
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Pollen morphology of the genus Lepisanthes (Sapindaceae) in relation to its taxonomy Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 18(2), 507-561.January 1970
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The distribution of bats in The Netherlands Article
Bijdragen tot de dierkunde, 40(1), 10-12.January 1970
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Le baculum de Tadarida teniotis Article
Bijdragen tot de dierkunde, 40(1), 8-9.January 1970
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Hovering flight of Plecotus auritus Linnaeus Article
Bijdragen tot de dierkunde, 40(1), 60-66.January 1970
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New species of Annonaceae from Suriname Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 348(1), 336-342.January 1970
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The Malesian species of Gastonia (Araliaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 18(2), 490-495.January 1970
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Chromosome numbers of some Angiospermae collected in Cameroun and the Ivory Coast II Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 339(1), 431-435.January 1970
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Records of Syrphidae (Diptera) from the Lesser Antilles Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 34(1), 90-101.January 1970