Publication
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Die privaten Kollektionen des XIX. Jahrhunderts in der Sammlung des Mineralogischen Museums der Universität St. Petersburg, Russland Article
Scripta Geologica. Special Issue, 7-13.January 2004
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Welcoming address [to the VII International Symposium ‘Cultural Heritage in Geosciences, Mining and Metallurgy: Libraries - Archives - Museums’: “Museums and their collections”, Leiden (The Netherlands), 19-23 May 2003] Article
Scripta Geologica. Special Issue, 5-6.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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On the Barremian-Early Albian biogeography (by ammonites) of Colombia Article
Scripta Geologica, 515-558.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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Barremian-Early Albian Deshayesitidae, Oppeliidae, Desmoceratidae and Silesitidae of Colombia Article
Scripta Geologica, 183-312.January 2004
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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