1. Hardisty, M.W., Life without Jaws, Ceredigion: Forrest, 2006.
2. Kucheryavyi, A.V., Savvaitova, K.A., Gruzdeva, M.A., and Pavlov, D.S., Vopr. Ikhtiol., 2007, vol. 47, no. 4, pp. 462–466.
3. Kucheryavyi, A.V., Savvaitova, K.A., Pavlov, D.S., et al., Vopr. Ikhtiol., 2007, vol. 47, no. 1, pp. 42–57.
4. Docker, M.F., Am. Fish. Soc. Symp., 2009, vol. 72, pp. 71–114.
5. Bogutskaya, N.G. and Naseka, A.M., Katalog beschelyustnykh i ryb presnykh i solonovatykh vod Rossii s nomenklaturnymi i taksonomicheskimi kommentariyami (The Catalogue of Agnathans and Fishes of Fresh and Brackish Waters of Russia, with Nomenclatural and Taxonomic Comment), Moscow: KMK, 2004.