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2. E.A. Nikonova, A.B. Pakshver, and R.S. Yagudina, Fibre Chemistry, No.3 (1970), Plenum Publ.Co.,Ltd., London.
3. E.A. Nikonova and A.B. Pakshver, Fibre Chemistry, No.1 (1972), Plenum Publ.Co.,Ltd., London.
4. E.A. Nikonova and A.B. Pakshver, Fibre Chemistry, No.2 (1972), Plenum Publ.Co.,Ltd., London.
5. H.G. Howell, K.W. Meiszis, and D. Tabor, Friction in Textiles, London, Butterworths (1959).