1. RUSZAJ A. (1989) Procesy obrôbek elektrochemicznej i elektroerozyjnej w rô2nych odmianach kinematycznych. Science Papers of Institute of Metal Cutting 76, p. 1–157.
2. RUSZAJ A. (1991) Investigations on the process of electrochemical sinking taking into account the randomness of phenomena occurring in the machining area. Wear Vol. 147, p. 25–40.
3. RUSZAJ A. (1990) Investigations aiming to increase electrochemical machining accuracy Precision.Engineering Vol. 12, 1, p. 43–48.
4. SAKAI S, MASUZAWA T., ITO S. (1989) ECM Finishing of Surface Products by EDM. Proc. Int. Symp. Electromachining 9, Nagoya, p. 155–159.
5. ZYBURA-SKRABALAK M., NOVAK A. (1992) Investigations on the process of electrochemical smoothing surfaces after rough electrodischarge machining. Proc. Int. Symp. Elektromachining 10, Magdeburg, p. 568–573.