Publication
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Heteromorphic ammonites from the Barremian and Aptian strata of Colombia Article
Scripta GeologicaJanuary 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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On the Barremian - lower Albian stratigraphy of Colombia Article
Scripta Geologica, 3-15.January 2004
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Preface: Early Cretaceous ammonites from Colombia Article
Scripta Geologica, 1-2.January 2004
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Cnidogenesis in the jewel anemone Corynactis californica (Carlgren, 1936) and C. viridis (Allman, 1846) (Anthozoa: Corallimorpharia) Article
Zoologische Mededelingen, 461-476.January 2004
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Notes on the genus Mama Belokobylskij (Hymenoptera: Braconidae: Euphorinae), and on the use of monotype taxa Article
Zoologische Mededelingen, 451-459.January 2004
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Phylogeny and biogeography of the genus Taractrocera Butler, 1870 (Lepidoptera: Hesperiidae), an example of Southeast Asian-Australian interchange Article
Zoologische Mededelingen, 383-415.January 2004
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Boekbespreking 2: R. Pot, Veldgids Water- en oeverplanten Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 30(2), 76-76.January 2004