Publication
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Problems and use of structure in the classification of vegetation. The diagnostic evaluation of structure in the Braun-Blanquet system Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 241(1), 495-511.January 1967
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Some observations on the alpine vegetation of Mount Biota (Papua) Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 245(1), 530-534.January 1967
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A revision of the Malesian and Ceylonese species of the genus Gaertnera Lamk. (Rubiaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 15(2), 359-391.January 1967
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Miscellaneous botanical notes XIX Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 15(2), 476-476.January 1967
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Review Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 15(2), 518-518.January 1967
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Contributions to Papuasian Botany II. A new species of Acianthus (Orchidaceae) from Bougainville Island Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 15(2), 403-405.January 1967
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The genus Epilobium in Malesia (Onagraceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 15(2), 269-282.January 1967
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A new combination in Fimbristylis (Cyperaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 15(1), 126-126.January 1967