1. A. Datyner, in: Surfactants in Textile Processing, Surfactant Science Series, vol. 14, Marcel Dekker, New York, 1983, Chapter 4, p. 55.
2. J.A. Rippon, in: D.M. Lewis (Ed.), Wool Dyeing, Society of Dyers and Colourists, Bradford, 1992, Chapter 1, p. 1.
3. Characteristics of the Protein Contaminant Layer on Merino Wool
4. Characterization of Proteinaceous Contaminants Extracted from Merino Raw Wool