1. V.A.Gruzdev and A.B.Pakshver, The Finishing of Viscose Rayon (in Russian), Gizlegprom (1956).
2. N.V.Khvolkovskii, The Friction of Textile Yarn (in Russian), Gizlegprom (1966).
3. W.Stein, Text.Prax., 25, No.4 (1970).
4. L.M.Kavalerova, V.A.Metlitskii, and M.I.Zakharov, Khim.Volokna, No.1 (1968).
5. W.Bodeth, A.Heger, and H.Muensch, Faserf.u.Textilt., 14, No.17 (1963).