LÁTR, Aleš, Martina ČUŘÍKOVÁ,
Milan BALÁŽ and Jaroslav JURČÁK. Mycorrhizas of Cephalanthera longifolia and Dactylorhiza majalis, two terrestrial orchids.
Annales Botanici Fennici. Helsinki: Finnish Zoological and Botanical Publishing Board, 2008, vol. 45, No. 4, p. 281-289. ISSN 0003-3847.