1. Kosswig, K. Surfactants. InUllmann's Encyclopedia of IndustrialChemistry; Elver, B., Hawkins, S., Russey, W., Eds.; VCH: New York, 1994; Vol. A2, p 747.
2. The effect of “peaking” the ethylene oxide distribution on the performance of alcohol ethoxylates and ether sulfates
3. Schwarz, C. E. The Processing of Wax and Wax Additives with Supercritical Fluids. Ph.D. Dissertation in Chemical Engineering, University of Stellenbosch, Matieland, South Africa, 2005.