1. 1. A. DOMSCH and B. IRRGANG, Surfactant Science Series, Vol. 56, 501-547 (1996).
2. 2. J.A.J. O’LENICK and W.C. SMITH, Soap, Cosmetic Chem., Spec. Vol. 64 (1988).
3. 3. T. SCHOENBERG, Soap, Perfumery and Cosmetics, Vol. 70, 33-36 (1997).
4. 4. T. SCHOENBERG, Soap, Cosmetic chem., Spec. Vol. 59 (1983).
5. 5. G. BROZE, Handbook of Surfactant, Surfactant Science Series, Part A: Properties Vol. 82, 76-78 (1999).