1. W. Clayton, Theory of Emulsions, McGraw-Hill, New York, 1943, p. 127.
2. The Atlas HLB Systems, Atlas Chemical Ind., Willmington, 1963.
3. P. Becher, in: K.L. Mittal, B. Lindmand (Eds.), HLB—A Survey in Surfactants in Solutions, Plenum, New York, 1984, p. 1926.