L. Mosyakin, S., A. Davydov, D. & M. Shiyan, N. (2017)

The authorship and nomenclature of Vincetoxicum rossicum (Cynanchum rossicum) and V. meoticum (C. meoticum) (Apocynaceae: Asclepiadoideae),
with considerations on nomenclatural uncertainties in determining the validity
of names

. Phytotaxa 307 (1): 75–83. https://doi.org/10.11646/phytotaxa.307.1.7