in GEOCONFERENCE ON SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING, SGEM 2013, VOL I in International Multidisciplinary Scientific GeoConference-SGEM, ISSN: 1314-2704
Volume: 1, Pages: 203-208 (6)
Conference
13Th International Multidisciplinary Scientific Geoconference, Sgem 2013, Date: JUN 16-22, 2013, Location: Albena, BULGARIA