1. G. I. Shor and V. P. Lapin, Electrical Effects upon Friction and Cutting of Metals [in Russian], Izd. Nauka (1969), pp. 108?115.
2. A. B. Vipper, S. É. Krein, and V. N. Bauman, Neftekhimiya,8, No. 6 (1968).
3. G. I. Shor, I. F. Blagovidov, V. P. Lapin, G. L. Trofimova, L. A. Al'tshuler, and N. I. Kuznetsova, Khim. i Tekhnol. Topliv i Masel, No. 6 (1971).
4. I. F. Blagovidov, V. P. Lapin, and G. I. Shor, Khim. i Tekhnol. Topliv i Masel, No. 1 (1971).