1. A. I. Koblyakov, G. N. Kukin, and A. N. Solov’ev, A Laboratory Manual for Textile Materials Science: A Textbook [in Russian], Legprombytizdat, Moscow (1986), p. 326.
2. A. N. Solov’ev and S. M. Kiryukhin, Quality Appraisal and Standardization of Textile Materials: A Textbook [in Russian], Legkaya Industriya, Moscow (1974), p. 248.
3. A. N. Solov’ev and S. M. Kiryukhin, Appraisal and Prediction of Quality of Textile Materials: A Textbook [in Russian], Legkaya i Pishchevaya Promyshlennost’, Moscow (1984), p. 215.