1. Braconnot, H., Ann. Chim. Phys., 1811, vol. 79. p. 263.
2. Sharnina, F.F., Ivshina, T.N., Ivshin, V.P., and Bastrakov, M.A., in Materialy VIII Mezhdunarodnoi konferentsii “Sovremennye perspektivy v issledovanii khitina i khitozana” (Proc. VIII Int. Conf. “Modern Prospects in Studying Chitin and Chitosan”), Kazan, 2006, Moscow: Vseross. Nauchno-Issled. Inst. Rybnogo Khozyaistva i Okeanografii, 2006, pp. 74–77.
3. Shabrukova, N.V., Gamayurova, V.S., and Shestakova, L.M., in Materialy VII Mezhdunarodnoi konferentsii “Novye dostizheniya v issledovanii khitina i khitozana” (Proc. VII Int. Conf. “New Achievements in Studying Chitin and Chitosan”), Moscow: Vseross. Nauchno-Issled. Inst. Rybnogo Khozyaistva i Okeanografii, 2003, pp. 60–62.
4. Shabrukova N.V., Shestakova L.M., Khalitov F.G., and Gamayurova, V.S., Vopr. Biol., Med. Farm. Khim., 2004, no. 3, pp. 38–40.
5. Muzzarelli, R.A.A., Tanfani, F., Scarpini, G., and Tucci, E., J. Appl. Biochem., 1980, vol. 2, no. 1, pp. 54–59.