Keyword "UPPER EGGENBURGIAN (UP TO OTTNANGIAN)" in:
Mineralogical and geochemical characteristics of tuffites and bentonites of the Carpathian Neogene Foredeep (Upper Eggenburgian, Eggenburgian up to Ottnangian)
Adamová,M., volume 28, 1995 (GRR for 1994), pages 7–9
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