Bartolucci, F., Galasso, G., Rainer, H. & Wagensommer, R.P. (2018)

Nomenclatural notes and typification of the name Viola calcarata var. pseudogracilis (Violaceae)

. Phytotaxa 340 (3): 286–288. https://doi.org/10.11646/phytotaxa.340.3.9