1. L. S. Ettre: J. Gas Chromatog.1, 2 (1963) 20.
2. P. R. Rony: Sep. Sci.3, 3 (1968) 239.
3. R. P. Rony: Sep. Sci.3 (1968) 357.
4. Anonymous: ASTM designation E 365–68 (1968) 1205.
5. A. B. Christophe: Chemistry and Biochemistry of Lipids as related to Atherosclerosis and Lipid Malabsorption PhD thesis; Grent Academic Press (1968) 54.