Kribek, Bohdan Weathering of organic matter from the Miocene brown shale (Sokolov basin, Czech Republic): environmental and remediation aspects - Rotterdam A.A. Balkema 1997 - pp. 67-70 ilus. Subjects--Topical Terms: ALTERACIONASPECTOS AMBIENTALESMATERIA ORGANICAPIRITA Subjects--Geographic Terms: CHECOSLOVAQUIA Universal Decimal Class. No.: R/061.3:553/P25|187