Publication
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Revision of the genera Foersteria Szépligeti and Polydegmon Foerster (Hymenoptera: Braconidae), with the description of a new genus Article
Zoologische Verhandelingen, 257(1), 1-32.January 1990
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Aanvraag streeplijsten 1980-1989 Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 16(4), 121-121.January 1990
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Genetic differentiation, origin and dispersal of Gammarus gauthieri from the Iberian peninsula and North Africa (Crustacea, Amphipoda) Article
Bijdragen tot de dierkunde, 60(1), 31-49.January 1990
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Notes on the typification of some species of Penicillium Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 14(2), 193-202.January 1990
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January 1990
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Taxonomy as a critical science Article
Bijdragen tot de dierkunde, 60(3/4), 335-337.January 1990
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Dilobopyga janstocki n. sp., a new cicada endemic to Sulawesi (Homoptera, Cicadidae) Article
Bijdragen tot de dierkunde, 60(3/4), 323-326.January 1990
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Comparison of oostegite shapes in some gammaroidean species (Crustacea: Amphipoda) Article
Bijdragen tot de dierkunde, 60(3/4), 277-282.January 1990