Arnelas, Itziar, Juan Antonio Devesa, and Eusebio López. 2013. “Centaurea stuessyi (Compositae: Cardueae), a New Species from the Eastern Iberian Peninsula”. Phytotaxa 115 (2). Auckland, New Zealand:42–48. https://doi.org/10.11646/phytotaxa.115.2.2.