Publication
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Pollinating fauna of a phryganic ecosystem: species list Article
Verslagen en Technische Gegevens, 59(1), 1-11.January 1991
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Hormaphidinae from Java (Homoptera: Aphididae) Article
Zoologische Verhandelingen, 270(1), 1-525.January 1991
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The atyid shrimps of Fiji with description of a new species Article
Zoologische Mededelingen, 65(27), 343-362.January 1991
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Copepods from intertidal interstitial water of Salvador, Brazil. I. Cuipora janaina gen. n., sp. n. & Cyclopina caiala sp. n. (Cyclopoida: Cyclopinidae) Article
Bijdragen tot de dierkunde, 61(2), 107-118.January 1991
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The two New Guinea species of Lepiderema Radlk. (Sapindaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 36(1), 235-238.January 1991
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FLORON kaderkamp 1991 Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 17(5), 17-19.January 1991
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The tuberous epiphytes of the Rubiaceae 2: The new genus Anthorrhiza Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 36(1), 21-41.January 1991
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The European and Mediterranean species of Aglaophenia (Cnidaria: Hydrozoa) Article
Zoologische Verhandelingen, 274(1), 1-72.January 1991