1. Y. Suzuki, K. Uchida, and M. Yoneyama, Abstracts of Papers, The First International Congress on “Vitamins and Biotactors in Lile Science,” Kobe, September, 1991, p. 79.
2. S. Kitahata, in “Handbook of Amylases and Related Enzymes,” ed. by The Amylase Research Society of Japan, Pergamon Press. 1988. pp. 154–164.