1. Deformations characteristcs and plasticity theory of sintered powder materials;Kuhn;Int. J. Powder Met.,1971
2. A plasticity theory for porous solids;Green;Int. J. Mech. Sci.,1972
3. Plasticity theory for porous metals.;Shima;Int. J. Mech. Sci.,1976
4. A. modified plasticity theory for porous metals;Gadala;Int. J. Num. Meth. Engng.,1980
5. Porous rigid-plastic materials containing rigid inclusions;Gurson,1977