Publication
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Xeniidae (Cnidaria: Octocorallia) from the Red Sea, with the description of a new species Article
Zoologische Mededelingen, 64(9), 113-120.January 1990
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Review Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 35(1), 4-4.January 1990
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Parasitic mites of Surinam : 24. The subfamily Ornithonyssinae, with descriptions of a new genus and three new species (Acari: Mesostigmata: Macronyssidae) Article
Zoologische Mededelingen, 63(14), 169-186.January 1990
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Laophontopsis Sars and the taxonomic concept of the Normanellinae (Copepoda: Harpacticoida): A revision Article
Bijdragen tot de dierkunde, 59(4), 203-227.January 1990
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A new Symplocos (Symplocaceae) from Sumatra Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 35(1), 229-231.January 1990
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Editorial The Jan H. Stock Valedictory Issue Article
Bijdragen tot de dierkunde, 60(3/4), 135-136.January 1990
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Oedicerotid Amphipoda (Crustacea) from shallow waters of Korea Article
Beaufortia, 39(5), 155-200.January 1990
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De verspreiding van het Grimmietum orbicularis (Allorge 1922) Marstaller 1980 in Nederland Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 16(4), 112-117.January 1990