1. J. K. Seaman, in “Handbook of Water Soluble Gums and Resins,” ed. by R. L. Davidson, McGraw-Hill Book Co., New York, 1980, pp. 6.1–6.19.
2. R. L. Whistler, in “Industrial Gums,” Academic Press, New York and London, 1973, pp. 303–321.
3. M. Glicksman, in “Gum Technology in the Food Industry,” Academic Press, New York and London, 1969, pp. 139–152.
4. P. Edman and A. Hanshen, in “Sequence Determination,” ed. by S. B. Needleman, Springer, Berlin, Heidelberg, New York, 1975, pp. 232–279.