1. Plasticity and modern metal forming technology;Blazynski,1989
2. Analysis of combined backward–forward extrusion;Avitzur;Journal of Engineering for Industry,1976
3. Avitzur B, Umana CE. Effects and application of geometry variations on the forward–backward extrusion. Proceedings of ASME Conference on Application of Numerical Methods to Metal Forming Processes. A D, Vol. 28. Cleveland, OH: ASM Publications, 1978. p. 175–82.
4. Upperbound solution to axi-symmetric extrusion problems;Lambert;International Journal of Mechanical Sciences,1968
5. An analysis of tube extrusion;Mehta;Journal of Engineering Industry,1970