Publication
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Parastenocarididae (Copepoda, Harpacticoida) from The Netherlands Article
Bijdragen tot de dierkunde, 60(3/4), 299-304.January 1990
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Reassessment of the generic status of Codonoboea (Gesneriaceae) and its species Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 35(1), 167-176.January 1990
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De larven der Nederlandse Chironomidae (Diptera) Deel C: Autoekologie en verspreiding Article
Nederlandse Faunistische Mededelingen, 1(C), 1-85.January 1990
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Host utilization during ontogeny by two pycnogonid species (Tanystylum duospinum and Ammothea hilgendorfi) parasitic on the hydroid Eucopella everta (Coelenterata: Campanulariidae) Article
Bijdragen tot de dierkunde, 60(3/4), 215-224.January 1990
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Taxonomy, ecology and fishery of Lake Victoria haplochromine trophic groups Article
Zoologische Verhandelingen, 262(1), 1-47.January 1990
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A revision of the Indian species of Oberonia (Orchidaceae) Article
Orchid Monographs, 4(1), 1-43.January 1990
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Illustrated key to the subfamilies of the Holarctic Braconidae (Hymenoptera: Ichneumonoidea) Article
Zoologische Mededelingen, 64(1), 1-20.January 1990
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De lindesoorten van Nederland Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 16(3), 61-81.January 1990