1. Sonntag, N.O.V., in Bailey’s Oil and Fat Products, 4th edn., Vol. 1, edited by D. Swern, John Wiley and Sons, New York, 1979, p. 49.
2. Strickland, K.P., in Form and Function of Phospholipids, 2nd edn., Vol. 3, edited by G.B. Ansell, J.N. Hawthorne and R.M.C. Dawson, Elsevier Pub. Comp., Amsterdam, 1973, p. 9.
3. Du Plessis, L.M., CHEMSA 8(11):150 (1982).
4. Pongracz, G., Int. J. Vitam. Nutr. Res. 43:517 (1973).
5. Davies, M.G., I.M. Jawad and G.S.D. Weir, Scientific and Technical Surveys No. 112 (1979), Leatherhead Food Res. Ass., Leatherhead, Surrey, UK.