Publication
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Obituaries and biographical notes Article
Flora Malesiana Bulletin, 16(1), 793-795.January 1961
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Florae Malesianae Precursores XXVIII. The genus Vaccinium in Malaysia Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 11(1), 9-112.January 1961
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A new species of Eriocaulon from Sumatra Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 11(1), 224-225.January 1961
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Reviews Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 11(1), 229-234.January 1961
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Florae Malesianae Precursores XXVII. Suppelmentary notes on Malaysian Ericaceae (Gaultheria, Costera, Diplycosia) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 11(1), 1-8.January 1961
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The fossil hippopotamus from Hopefield, South Africa Article
Zoologische Mededelingen, 37(10), 157-165.January 1961
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Female genitalia of the species of Depressaria Hw. s.l. (Lepidoptera, Oecophoridae) occuring in the Netherlands Article
Zoologische Mededelingen, 38(2), 15-40.January 1961
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The ecology and forest types of the peat swamp forests of Sarawak and Brunei Article
Flora Malesiana Bulletin, 16(1), 817-818.January 1961