Publication
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Considerations on the comparative pathology of the vertebrae in Mysticeti and Odontoceti; evidence for the occurrence of discarthrosis, zygarthrosis, infectious spondylitis and spondyloarthritis Article
Zoologische Mededelingen, 99-130.January 1999
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Unieke vondst in Ridderkerk: Bleke schubwortel (Lathraea squamaria L.) weer terug in Nederland Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 25(4), 84-85.January 1999
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Phylogenetic relationships of the European newts (genus Triturus) tested with mitochondrial DNA sequence data Article
Contributions to Zoology, 68(2), 73-81.January 1999
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Fossil appendicular skeletal walrus material from the North Sea and the estuary of the Schelde (Mammalia, Carnivora) Article
Beaufortia, 49(8), 63-81.January 1999
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Nieuwe en interessante Microlepidoptera uit Nederland in het jaar 1996 (Lepidoptera) Article
Entomologische berichten, 59(6), 77-95.January 1999
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January 1999
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Reef-dwelling Holothuroidea (Echinodermata) of the Spermonde Archipelago (South-West Sulawesi, Indonesia) Article
Zoologische Verhandelingen, 1-144.January 1999
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De sneeuwspringer Boreus hyemalis in Nederland (Mecoptera: Boreidae) Article
Nederlandse Faunistische Mededelingen, 1-10.January 1999