1. T. Sawai, “Proceedings of the Amylase Symposium,” ed. by Society of Amylase Researchers, Osaka, Japan, 1967, p. 111.
2. “Enzyme Nomenclature 1972,” Recommendations of the International Union of Pure and Applied Chemistry and the International Union of Biochemistry, Elsevier, Amsterdam, p. 222.
3. H. Miyaji, A. Misaki and M. Torii, Abstracts of Papers, Annual Meeting of Agric. Chem. Soc. of Japan, Tokyo, April, 1971, p. 276.