1. T. Kurata, M. Fujimaki and Y. Sakurai, Abstract of papers, the annual meeting of the Agricultural Chemical Society of Japan, Tokyo, April, 1971, p. 172.
2. “Biochemists’ Handbook,” ed. by C. Long, D. van Nostrand Company Inc., 1961, pp. 30, 40.
3. “Agricultural Chemical Experiments” (in Japanese) Vol. I, ed. by the Laboratory of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo, Asakura Co., 1960, p. 151.
4. L. W. Clark, “The Chemistry of Carboxylic Acids and Esters,” ed. by S. Patai, John Wiley & Sons Ltd., 1969, p. 606.
5. A. A. Frost and R. G. Pearson, “Kinetics and Mechanism,” 2 ed. John Wiley & Sons Ltd., 1961, p. 335.