1. J. Boyd, H.N. Kaufman, The causes and the control of electrical currents in bearings, Lubrication Engineering (January 1959) 28–35.
2. H.N. Kaufman, J. Boyd, The conduction of current in bearings, ASLE Conf., Los Angles, CA, October, 1958.
3. Bearing damage by electrical wear and its effect on deterioration of lubricating greases;Komatsuzaki;Lubricating Engineering,1987
4. Behavior of greases in statically-bounded conditions and when used in non-insulated anti-friction bearings under the influence of electrical fields;Prashad;Lubrication Engineering,1988
5. Investigation of damaged rolling-element bearings and deterioration of lubricants under the influence of electric fields;Prashad;Wear,1994