1. Fitzgerald, J.M. and McGeough, J.A. Mathematical Theory of Electrochemical Machining; J. Inst. Math Appl. (1969), No. 5, p. 387.
2. The Influence of Process Parameters and Tool Electrode Geometry on the Development of the Overcut in Electrochemical Machining with High Current Densities;Koenig,1971
3. The Science and Technology of ECM;Weigand,1968
4. Principles of Electrochemical Machining;McGeough,1974
5. Freer, H.E., Hanley, J.B., Maclellan, G.D.S. Electrochemical Machining of Plain Carbon Steels, in Fundamentals of Electrochemical Machining