Tan, K., Shuka, L., Siljak-Yakovlev, S., Malo, S. & Pustahija, F. (2011) The genus Gymnospermium (Berberidaceae) in the Balkans. Phytotaxa 25 (1): 1–17. https://doi.org/10.11646/phytotaxa.25.1.1