Celep, F., Dirmenci, T., & Güner, Özal. (2015).

Salvia hasankeyfense (Lamiaceae), a new species from Hasankeyf (Batman, South-eastern Turkey)

. Phytotaxa, 227(3), 289–294. https://doi.org/10.11646/phytotaxa.227.3.9