SGEM SGEM 2022. 22nd International Multidisciplinary Scientific GeoConference. Volume 22 : conference proceedings. 04 - 10 July, 2022, Albena, Bulgaria Issue 6.1 Nano, Bio, Green and Space - Technologies for a Sustainable Future. -- 1. vyd. -- Sofia : STEF 92 Technology, 2022. -- ISBN : 978-619-7603-48-4. -- ISSN : 1314-2704. -- 10.5593/sgem2022/6.1.