Suchergebnisse | ÚOP v Ostravě http://iispp.npu.cz/carmen/library/ostrava/search/index-item/rss?id=58784191&lang=DE&page=1&s=-9697&sd=ASC&value=abandoned+mines Suchen nach Index-Einheit: abandoned mines Termination of underground coal mining and its impact on the environment Martinec, Petr, 1942-