Kogerman, P. N.2007-07-102007-07-101925Est.A-12547http://hdl.handle.net/10062/3045engCC0 1.0 UniversalopenAccesshttp://creativecommons.org/publicdomain/zero/1.0/põlevkivitööstusEestiEstonica kogupõlevkivi20. saj. 1. poolseparaadidThe present status of the oil-shale industry in EstoniaBook