1. D. E. Buetow, “Methods in Cell Physiology,” Vol. 4, ed. by D. M. Prescott, Academic Press Inc., New York, N.Y., 1970, p. 83.
2. R. C. Starr, “Methods in Enzymology,” Vol. 23, ed. by S. P. Colowic and N. O. Kaplan, Academic Press Inc., New York, N.Y., 1971, p. 29.
3. B. Chance and G. R. Williams, “Advances in Enzymology,” Vol. 17, ed. by F. F. Nord, Interscience, New York, 1956, p. 65.
4. D. Jaworek, W. Gruber and H. U. Bergmeyer, “Methods of Enzymatic Analysis,” Vol. 4, ed. by H. U. Bergmeyer, Academic Press Inc., New York, N. Y., 1974, p. 2127.