Radosław Dobrowolski.<br />Glacial and periglacial transformation of karst relief in the northern foreland of the Lublin-Volhynia uplands (SE Poland, NW Ukraine)
organized by Roman Leboda, Jolanta Narkiewicz-Michałek, Yurii I. Tarasevich ; [ed. by E. V. Aksenenko et al.] ; Faculty of Chemistry. Maria Curie-Skłodowska University in Lublin.