Problems of Plasticity Papers contributed to the international symposium on foundations of plasticity Warsaw, August 30–September 2, 1972 Sawczuk A. Innbundet / 1974 / Engelsk
Problems of Plasticity Papers contributed to the international symposium on foundations of plasticity Warsaw, August 30–September 2, 1972 Sawczuk A. Heftet / 2011 / Engelsk
Optimization in Structural Design Symposium Warsaw/Poland August 21–24, 1973 Sawczuk A. Heftet / 2012 / Engelsk