Publication
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Notes on new collections of Malaysian Pittosporum (Pittosporaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 11(2), 426-426.January 1962
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The identity of Scleria dillonii Boeck. (Cyperaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 11(2), 494-494.January 1962
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Revision of the moss-genus Neckeropsis (Neckeraceae). I. Asiatic and Pacific species Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 11(2), 373-425.January 1962
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Quaternary Langurs and Macaques from the Malay archipelago Article
Zoologische Verhandelingen, 55(1), 1-64.January 1962
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Contribution to the knowledge of the Indo-Australian Pseninae (Hymenoptera, Sphecidae) Article
Zoologische Verhandelingen, 52(1), 1-117.January 1962
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Revision of the Indo-Australian species of the genus Thyreus Panzer (= Crocisa Jurine) (Hym., Apoidea, Anthophoridae) Part 3. Oriental and Australian species Article
Zoologische Verhandelingen, 53(1), 1-212.January 1962
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The land-bridge theory in botany with particular reference to tropical plants Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 11(2), 235-372.January 1962
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A review of the genera and species of the Bomolochidae (Crustacea, Copepoda), including the description of some old and new species Article
Zoologische Verhandelingen, 56(1), 1-111.January 1962