Publication
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Eenden Article
Club van Zeetrekwaarnemers Verslagen, 4(1), 4-6.January 1973
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Tabellen Article
Club van Zeetrekwaarnemers Verslagen, 4(1), 6-8.January 1973
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A new species of Turnera from Pará, Brazil Article
Acta botanica neerlandica, 22(2), 159-163.January 1973
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Additional data on the lianes of the Brokopondo District, Surinam Article
Acta botanica neerlandica, 22(2), 164-165.January 1973
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Meetings of the Royal Botanical Society of the Netherlands Article
Acta botanica neerlandica, 22(2), 166-172.January 1973
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Book Reviews Article
Acta botanica neerlandica, 22(2), 173-176.January 1973
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Vaucheria species from the Dutch brackish inland ponds “De Putten” Article
Acta botanica neerlandica, 22(3), 177-192.January 1973
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Some aspects of wood-anatomical research in the genus Inga (Mimosaceae) from the Guianas and especially Suriname Article
Acta botanica neerlandica, 22(3), 193-205.January 1973