1. H. P. Kaufmann and A. Karabatur, Die Nährung,2, 61 (1958); H. P. Kaufmann, Analyse der Fette und Fettprodukte, Springer, Berlin (1958), p. 828.
2. É. V. Dyatlovitskaya, V. V. Voronkova, and L. D. Bergel'son, Izv. Akad. Nauk SSSR, Ser. Khim., No. 11, 1960 (1965).
3. T. P. Hilditch et al., J. Amer. Chem. Ind.,44, 43, 180 (1925);48, 46 (1929); T. P. Hilditch, Chemical Constitution of Natural Fats, 1st ed., Chapman and Hall, London (1940), p. 322.
4. H. Bayzer, J. Chromat.,27, 104 (1967).
5. R. E. B. Duncan and J. W. Porteous, Analyst,78, 641 (1953).