1. Knights, B.A., and A.M.M. Berrie, Phytochemistry 10:131 (1971).
2. Itoh, T., T. Tamura, and T. Matsumoto, J. Am. Oil Chem. Soc. 50:122 (1973).
3. Mordret, F., and J.P. Helme, in “Proc. 4. Intern. Rapskongress,” Giessen, 1974, p. 283.
4. Seher, A., and E. Homberg, in “Proc. 4. Intern. Rapskongress,” Giessen, 1974, p. 301.
5. Mannino, S., and G. Amelotti, Riv. Ital. Sost. Grasse 52:79 (1975).