AKHTARIN, S.M. & DOLGOV, A.V. (2007)
2.2.4. Thorny skate (Raja radiata Dononvan, 1808). In: Methodical manual on evaluation of total allowable catch and possible national catches of commercially important hydrobionts in the PINRO investigations areas. – Murmansk, PINRO Press, 2007. – 289 pp.: 185–186 (in Russian)