Publication
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Systematic notes on Asian birds. 21. Babbler jungle: a re-evaluation of the ‘pyrrogenys’ group of Asian pellorneines (Timaliidae) Article
Zoologische Verhandelingen, 235-254.January 2001
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Barringtonia Maunwongyathiae (Lecythidaceae): a new species from Thailand Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 46(3), 575-579.January 2001
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Systematic notes on Asian birds. 18. Some nomenclatural issues relating to Japanese taxa described in the Planches Coloriées (1820-1839) and Fauna Japonica, Aves (1844-1850) Article
Zoologische Verhandelingen, 199-214.January 2001
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Systematic notes on Asian birds. 17. Types of birds collected in Yunnan by George Forrest and described by Walter Rothschild Article
Zoologische Verhandelingen, 183-198.January 2001
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Systematic notes on Asian birds. 16. The type of Pitta baudii Müller & Schlegel, 1839 (Pittidae) Article
Zoologische Verhandelingen, 175-182.January 2001
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Snelle uitbreiding van Watersla (Pistia stratiotes L.) rond Meppel Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 27(6), 133-135.January 2001
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A taxonomic revision of Mallotus sections Hancea and Stylanthus (Euphorbiaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 46(1), 3-66.January 2001
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On the special botanical character of the Leuser Park and vicinity, with Emphasis on the High Mountain Blang Vegetation of Northern Sumatra Article
Flora Malesiana Bulletin, 12(7/8), 377-391.January 2001