BERESTOVSKY, E.G. & AKHMETCHINA, O.Y. (2007)
Species and size composition of hydrobionts in diet of long rough dab, thorny and round skates. In : Recent investigations of ichthyofauna in arctic and southern seas of European part of Russia. Russian Academy of Science, Kola Science Center, Murmansk Marine Biological Institute. Apatity. P.107-116 (in Russian)