1. L. M. Likhosherstov, O. S. Novikova, V. A. Derevitskaya, and N. K. Kochetkov, Dokl. Akad. Nauk SSSR,274, 222 (1984).
2. R. Rocchi and V. Giormani, in: The Chemistry and Biochemistry of Amino Acids, Peptides, and Proteins, edited by B. N. Y. Weistein, Vol. 7, Marcel Dekker, Inc. (1983), p. 35.
3. M. Kiyozumi, K. Kato, T. Komori, A. Yamamoto, T. Kawasaki, and H. Tsukamoto, Carbohydr. Res.,14, 355 (1970).
4. G. S. Marks, R. D. Marshall, and A. Neuberger, Biochem. J.,87, 274 (1963).
5. M. Spinola and R. W. Jeanloz, J. Biol. Chem.,245, 4158 (1970).