Westphalian A and B Miospore Zones in boreholes from the Inde and Wurm Synclines and the Erkelenz Horst near Aachen, Federal Republic of Germany. - 1991
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Article (Scientific journals)
Westphalian A and B Miospore Zones in boreholes from the Inde and Wurm Synclines and the Erkelenz Horst near Aachen, Federal Republic of Germany.