Template:Peruzzi, Aquaro & Cesca, 2004
- Peruzzi, L., Aquaro, G. & Cesca, G. 2004. Distribution, karyology and taxonomy of Onosma helvetica subsp. lucana comb. nova (Boraginaceae), a schizoendemic in Basilicata and Calabria (S. Italy). Phyton (Horn) 44(1): 69-81.