Publication
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Heteromorphic ammonites from the Barremian and Aptian strata of Colombia Article
Scripta GeologicaJanuary 2004
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Vlier met rode herfstkleur! Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 30(6), 213-213.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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Aptian and Early Albian Douvilleiceratidae, Acanthohoplitidae and Parahoplitidae of Colombia Article
Scripta Geologica, 313-514.January 2004
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On the Barremian-Early Albian biogeography (by ammonites) of Colombia Article
Scripta Geologica, 515-558.January 2004
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Fish microfossils from Ramsåsa, site E, Scania, southern Sweden (mid Palaeozoic) Article
Scripta Geologica, 1-70.January 2004
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Aphids of Java. Part V: Aphidini (Homoptera: Aphididae) Article
Zoologische Verhandelingen, 7-83.January 2004
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Book reviews Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 18(3), 434-434.January 2004