1. Winton, A.L., and K.B. Winton, inThe Structure and Composition of Foods, Vol. II, John Wiley & Sons Inc. N.Y., 1949, p. 534.
2. Tingwa, P.O., and R.E. Young,J. Am. Soc. Hortic. Sci. 100:447 (1975).
3. Biale, J.B.,Plant Phys. 1:183 (1950).
4. Petroccini, C., E. Bazan, N. Panno and V. Averna,La Rivista Italiana Sostanze Grasse LV:260 (1978).
5. Mazliak, P.,Fruits 26:615 (1975).