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Použité zdroje
Havlíček V. (1967): Brachiopoda of the Suborder Strophomenidina in Czechoslovakia, Academia, Rozpravy Ústředního ústavu geologického 33
I.Löbl, A.Smetana (2007): Catalogue of Palearctic Coleoptera, Volume 4, Apollo Books
Irikov A., Eröss Z. (2008): An Updated and Annotated Checklist of Bulgarian Terrestrial Gastropods (Mollusca: Gastropoda), Folia Malacologica, Vol. 16(4)
Marhold, K., Ancev, M. E. & Tan, K. (1996): A new subspecies of Cardamine amara (Brassicaceae) from Bulgaria and Greece, Ann. Bot. Fennici 33: 199–204.