@article{GDZPPN001173006, title = {On Finite Element Methods for Plasticity Problems.}, journal = {Numerische Mathematik}, volume = {26}, year = {1976}, pages = {79-84}, zbl = {0355.73035}, url = {http://dml.mathdoc.fr/item/GDZPPN001173006} }
Johnson, C. On Finite Element Methods for Plasticity Problems.. Numerische Mathematik, Tome 26 (1976) pp. 79-84. http://gdmltest.u-ga.fr/item/GDZPPN001173006/