Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1981__37_132720, author = {N. Kikuchi}, title = {Convergence of a {Penalty-Finite} {Element} {Approximation} for an {Obstacle} {Problem.}}, journal = {Numerische Mathematik}, pages = {105--120}, publisher = {mathdoc}, volume = {37}, year = {1981}, zbl = {0469.65044}, url = {http://geodesic.mathdoc.fr/item/NUMA_1981__37_132720/} }
N. Kikuchi. Convergence of a Penalty-Finite Element Approximation for an Obstacle Problem.. Numerische Mathematik, Tome 37 (1981), pp. 105-120. http://geodesic.mathdoc.fr/item/NUMA_1981__37_132720/