Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1971__18_132100, author = {C.A. Hall and R.E. Carlson}, title = {Ritz {Approximations} to {Two-Dimensional} {Boundary} {Value} {Problems.}}, journal = {Numerische Mathematik}, pages = {171--181}, publisher = {mathdoc}, volume = {18}, year = {1971}, zbl = {0213.17002}, url = {http://geodesic.mathdoc.fr/item/NUMA_1971__18_132100/} }
C.A. Hall; R.E. Carlson. Ritz Approximations to Two-Dimensional Boundary Value Problems.. Numerische Mathematik, Tome 18 (1971), pp. 171-181. http://geodesic.mathdoc.fr/item/NUMA_1971__18_132100/