Aesthetics of the four elements: earth, water, fire, air / Marzenna Jakubczak ... [et al.] ; edited by Krystyna Wilkoszewska.    Ostrava : University of Ostrava ; Šenov u Ostravy : Tilia, 2001 . 415 s. il. (některé barev.) ; . ISBN 80-7042-588-1. ISBN 80-86101-43-6