Publication
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Pronkia, a new genus of the Meteorideinae (Hymenoptera: Braconidae) from New Zealand Article
Zoologische Mededelingen, 64(13), 169-175.January 1990
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Review Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 35(1), 216-216.January 1990
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A new combination in Agrostophyllum (Orchidaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 35(1), 165-165.January 1990
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Editorial Article
Flora Malesiana Bulletin, 10(3), 223-223.January 1990
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The PROSEA project (Plant Resources of Southeast Asia) Article
Flora Malesiana Bulletin, 10(3), 247-249.January 1990
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Further observations on fossil and subfossil Odobenid material (Mammalia, Carnivora) from the North Sea Article
Beaufortia, 40(5), 85-101.January 1990
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Genetic differentiation and estimated levels of gene flow in members of the Gammarus pulex-group (Crustacea, Amphipoda) in western Europe Article
Bijdragen tot de dierkunde, 60(1), 3-29.January 1990
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A new species of palaemonid shrimp, Chacella tricornuta spec. nov (Crustacea: Decapoda: Palaemonidae) from the southeastern Gulf of California, Mexico Article
Zoologische Mededelingen, 63(24), 325-334.January 1990