Filigheddu, R., Farris, E., Pisanu, S., Urbani, M. & Susanna, A. (2014)

Validation of the name Centaurea ×forsythiana Levier (Asteraceae)

. Phytotaxa 166 (4): 297–300. https://doi.org/10.11646/phytotaxa.166.4.6