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keyword: speleogenesis – 3 free books.
Tektonska zgradba sistema Postojnskih jam = Tectonic structure of Postojnska jama cave system
Stanka Šebela
The Dynamics of Present-Day Speleogenetic Processes in the Stream Caves of Slovenia
Mitja Prelovšek
Processes of Speleogenessis
Wolfgang Dreybrodt et al.
