1. H. Fujita, in “Chemistry of Lipids,”Courses of Biochemical Experiments, Vol. 3, ed. by Biochem. Soc. Jpn., Tokyo Kagaku Dojin, Tokyo, 1974. pp. 270–272.
2. N. G. Bazan, in “Nutrition and the Brain,” ed. by R. J. Wurtman and J. J. Wurtman, Raven Press, New York, 1977, pp. 1–24.
3. T. Hori and M. Horiguchi, “Biochemistry of C–P Compounds,” Gakkai Shuppan Center, Tokyo, 1978, p. 147.