1. Jensen, A., Hydrobiologia, 1993, vol. 260–261, pp. 15–23.
2. Fomin, V.V., Vainshtein, V.A., Kaukhova, I.E., and Limarenko, Yu.A., RF Patent no. 2142812, Byull. Izobret., 1999, no. 34.
3. Nekrasova, V.B., Nikitina, T.V., Malygina, M.A., and Bokova, E.M., RF Patent no. 2126688, Byull. Izobret., 1999, no. 6.
4. Lesiovskaya, E.E., Frolova, N.Yu., Drozhzhina, E.V., Buryakina, A.V., and Mel’nikova, L.F., Biologicheski aktivnye dobavki. Spravochnik (Biologically Active Supplements: A Handbook), St. Petersburg: Sova, 2001.
5. Obluchinskaya, E.D., Voskoboinikov, G.M., and Galynkin, V.A., Prikl. Biokhim. Mikrobiol., 2002, vol. 38, no. 2, pp. 213–216.