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  1. Systême silurien du centre de la Bohême / par Joachim Barrande.
    By: Barrande, Joachim, - Perner, Jaroslav, - Počta, Felip, - Waagen, Wilhelm Heinrich,
    Publication info: Prague ;Chez l'auteur,1852-1911.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  2. Ueber die Foraminiferen des Böhmischen Cenomans / Jaroslav Perner.
    By: Perner, Jaroslav,
    Publication info: Prague :České Akademie Císaře Františka Josefa,1892.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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