1. Lachampt, F., and R. M. Vila, Am. Perfumer Cosmet.82, 29 (1967).
2. Friberg, S., L. Mandell and M. Larsson, J. Colloid Interf. Sci.29, 156 (1969).
3. Friberg, S., L. Mandell and K. Fontell, Acta Chem. Scand.23, 1055 (1969).
4. Mandell, L., and P. Ekwall, Acta Polytech. Scand. Ch.74 I (1968).
5. Fontell, K., L. Mandell, P. Ekwall and H. Lehtinen, Ibid.74, III (1968).