Analysis geofactors influencing foundation engineering / Petra Bednářová, Marian Marschalko, Dominik Niemiec, Karel Kubečka, Robert DUDA // W: SGEM 2015 : science and technologies in geology, exploration and mining : 15\textsuperscript{th} international multidisciplinary scientific geoconference : 18–24, June, 2015, Albena, Bulgaria : conference proceedings. Vol. 2, Hydrogeology, Engineering Geology and Geotechnics. — Sofia : STEF92 Technology Ltd., cop. 2015. — (International Multidisciplinary Scientific GeoConference SGEM ; ISSN 1314-2704). — ISBN: 978-619-7105-32-2. — S. 33–40. — Bibliogr. s. 39–40, Abstr.

The history of pyrope extraction and processing in the Czech Republic and its significance for geotourism / Miloš Duraj, Marian Marschalko, Robert DUDA, Dana Sitányiová, Soňa Masarovičová // W: WMESS 2015 : the World Multidisciplinary Earth Symposium : save the EARTH : 7–11 September, 2015, Prague (Czech Republic) : abstract collection book. — Wersja do Windows. — Dane tekstowe. — [Czech Republic : s. n.], [2015]. — 1 dysk optyczny. — e-ISBN: 978-80-970698-4-1. — S. 123. — Wymagania systemowe: Adobe Reader ; napęd CD-ROM

The history of pyrope extraction and processing in the Czech Republic and its significance for geotourism / Miloš Duraj, Marian Marschalko, Robert DUDA, Dana Sitányiová, Soňa Masarovičová // Procedia Earth and Planetary Science ; ISSN 1878-5220. — 2015 vol. 15, s. 663–668. — Bibliogr. s. 668, Abstr.. — WMESS 2015 : World Multidisciplinary Earth Science Symposium : 7–11 September 2015, Prague, Czech Republic. — tekst: http://www.sciencedirect.com.atoz.wbg2.bg.agh.edu.pl/science/article/pii/S1878522015003422/pdf?md5=0c22b9c4edda1b8803643102987850f0&pid=1-s2.0-S1878522015003422-main.pdf