Źródło: | W: 17th International Multidisciplinary Scientific GeoConference. SGEM 2017, 29 June - 5 July 2017, Albena, Bulgaria. Conference proceedings. Vol. 17, Science and technologies in geology, exploration and mining. Iss. 13, Exploration and mining. Sofia : STEF92 Technology, 2017, s. 407-414, bibliogr. 15 poz. |