Title information : SGEM 2021. 21st International Multidisciplinary Scientific GeoConference. Volume 21. Science and Technologies in Geology, Exploration and Mining : conference proceedings of selected papers. Albena, Bulgaria, 16 - 22 August, 2021 Issue 1.1 Geology, Hydrogeology, Engineering Geology and Geotechnics, Exploration and Mining, Mineral Processing, Applied and environmental Geophysics, Oil and Gas Exploration Action : \q12*stu_us_auth*1 0100119 \q \q1013 stu_us_auth*0100119 \d International Multidisciplinary Scientific GeoConference SGEM 2021 \q 21. 16. - 22. 8. 2021 Albena, Bulharsko Issue : 1. vyd. Issue data : Sofia : STEF 92 Technology, 2021 %continue : . - 1038 s. ISBN : ISBN 978-619-7603-20-0. -- ISBN 978-619-7603-21-7 (DVD) ISSN : ISSN 1314-2704 Document kind : zborník (príspevkov) References : \q2479**1 stu_us_cat*0094634*xcla \q (8) - článok