1. J. S. D. Bacon, “Yeast Mould and Plant Protoplasts,” ed. by J. R. Villanueva, I. Garcia-Acha, S. Gascon and F. Uruburu, Academic Press, New York and London, 1973, p. 67.
2. M. L. Worfrom and A. Thompson, “Methods in Carbohydrate Chemistry,” Vol. II, ed. by R. L. Whistler, Academic Press, New York and London, 1963, p. 65.
3. I. J. Goldstein, G. W. Hay, B. A. Lewis and S. Smith,ibid., Vol. V, ed. by R. L. Whistler, Academic Press, New York and London, 1965, p. 361.
4. W. J. Whelan, “Methods in Carbohydrate Chemistry,” Vol. I, ed. by R. L. Whistler, Academic Press, New York and London, 1962, p. 330.