Publication
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The status of the alien amphipod Gammarus tigrinus (Sexton, 1939) in Friesland twenty five years after its introduction into the Netherlands Article
Bulletin Zoologisch Museum, 11(7), 65-67.January 1987
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Freshwater Gammarus species from Europe, North Africa and adjacent regions of Asia (Crustacea-Amphipoda). Part III. Gammarus balcanicus-group and related species Article
Bijdragen tot de dierkunde, 57(2), 207-260.January 1987
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Additions to Horsfieldia (Myristicaceae) including four new species Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 32(2), 459-472.January 1987
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Taxonomy and distribution of Trifurcula squamatella Stainton sp.rev., a senior synonym of T. maxima Klimesch (Lepidoptera: Nepticulidae) Article
Entomologist's Gazette, 179-187.January 1987
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A revision of Leptonychia (Sterculiaceae) in Southeast Asia Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 32(2), 443-457.January 1987
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Floron-dag Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 14(6), 122-122.January 1988
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Brachiopoda collected by CANCAP IV and VI expeditions to the South-East North Atlantic. 1980-1982 Article
Zoologische Mededelingen, 62(5), 59-74.January 1988
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Pseudophegopteris (Thelypteridaceae) in Fiji, a new record and a new species Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 33(2), 423-426.January 1988