- [Wiki]
https://en.wikipedia.org/wiki/Raja_polystigma.
- [fishbase]
https://www.fishbase.de/summary/Raja-polystigma.html.
- [Kooy2010]
Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
Cambridge Univ. Press, Cambridge.
- [PorcBell2020]
Porcu, C., Bellodi, A., Cau, A., Cannas, R., Marongiu, M. F., Mulas, A., and
Follesa, M. C. (2020).
Uncommon biological patterns of a little known endemic
Mediterranean skate, Raja polystigma (Risso, 1810).
Regional Studies in Marine Science, 34:101065.