List of neovolkanic caves in the Ústí nad Labem region (the Czech Republic) supplemented with records of spider Meta menardi (Latreille, 1804); preliminary data / Richard Pokorný, Michal Holec, Kateřina Pokorná   .  Studia oecologica.Roč. 2, č. 2 (2008), s. 12-17.