1. Liener, I. E. (Ed.), Toxic Constituents of Plant Foodstuffs, 2nd Edn, Academic Press, New York, 1980
2. Ory, R. L. (Ed.), Antinutrients and Natural Toxicants in Foods, Food and Nutrition Press, Westport, Connecticut, 1981
3. Maheshwari, P. N., Stanley, D. W. and Gray, J. I., J. Food Protection, 44, 459 (1981)
4. Bell, J. M, Can. J. Agric. Sci, 35, 242 (1955)
5. Miller, R. W., Van Etten, C. H., McCrew, C., Wolff, I. A. and Jones, Q. J., J. Agric. Food Chem, 10, 426 (1962)