Publication
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On the Barremian - lower Albian stratigraphy of Colombia Article
Scripta Geologica, 3-15.January 2004
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Intraspecific and intrageneric variabilities and their implication for the systematics of Cretaceous heteromorph ammonites; a review Article
Scripta Geologica, 17-37.January 2004
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Heteromorphic ammonites from the Barremian and Aptian strata of Colombia Article
Scripta GeologicaJanuary 2004
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Book review Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 18(3), 410-410.January 2004
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Barremian-Early Albian Deshayesitidae, Oppeliidae, Desmoceratidae and Silesitidae of Colombia Article
Scripta Geologica, 183-312.January 2004
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January 2004
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Drie soorten zweefvliegen minder op de Nederlandse lijst (Diptera: Syrphidae) Article
Nederlandse Faunistische Mededelingen, 127-132.January 2004
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Comparison of Neogene low-crowned Hystrix species (Mammalia, Porcupines, Rodentia) from Europe, West and Southeast Asia Article
Beaufortia, 54(5), 75-80.January 2004