Environmental impact of the AMD buffering process on the groundwater quality in the Trzebionka zinc-lead mine vicinity (South Poland) / Mariusz CZOP, Jacek MOTYKA, Marek Szuwarzyński // W: IMWA Symposium 2007 : water in mining environments : 27–31 May 2007, Cagliari – Italy : proceedings / eds. Rosa Cidu, Franco Frau. — Cagliari : Universitá degli Studi di Cagliari, 2007. — ISBN: 978-88-902955-0-8-33. — S. 59–63. — Bibliogr. s. 63, Abstr.

Ice caves of Iceland / Michał Banaś, Wociech KOCOT, Jacek MOTYKA // W: Karst and Cryokarst : 25\textsuperscript{th} Speleological School ; 8\textsuperscript{th} GLACKIPR Symposium : Sosnowiec–Wrocław, Poland, March 19–26, 2007 : guidebook & abstracts / eds. Paweł Socha, Krzysztof Stefaniak, Andrzej Tyc. — Sosnowiec : Department of Geomorphology, University of Silesia ; Wrocław : Department of Paleozoology, Zoological Institute, University of Wrocław, 2007. — ISBN: 978-83-87431-84-6. — S. 72–73