Authors
Marek Krąpiec
Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, Kraków, Poland
Elżbieta Szychowska-Krąpiec
Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, Kraków, Poland
Leonid Tymoshenko
Faculty of History, Drohobych State Ivan Franko Pedagogical University, Drohobych, Ukraine
Roman Myska
Communal Institution of Lviv Regional Council Administration of Historical and Cultural Conservancy “Tustan”, Lviv, Ukraine