ROŽENBERGAR, Dušan in DIACI, Jurij, 2003, Comparative studies of gapphase regeneration in managed and natural beech forests in different parts of Europe : general introduction, discussion and conclusion [na spletu]. Elaborat, predštudija, študija. S. l. : Nat-Man Project. [Dostopano 4 april 2025]. Pridobljeno s: http://www.flec.kvl.dk/natman/html/getfile.asp?vid=604