KOCHJAROVÁ, Judita, Milan VALACHOVIČ,
Petr BUREŠ and Patrik MRÁZ. The genus Cochlearia L. (Brassicaceae) in the Eastern Carpathians and adjacent area.
Botanical Journal of the Linnean Society. London: Linnean Society of London, 2006, vol. 151, No 3, p. 355-364. ISSN 0024-4074.