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@article{NUMA_1969__13_131902, author = {J.H. BRAMBLE}, title = {On the {Convergence} of {Difference} {Approximations} to {Weak} {Solutions} of {Dirichlet's} {Problem.}}, journal = {Numerische Mathematik}, pages = {101--111}, publisher = {mathdoc}, volume = {13}, year = {1969}, zbl = {0196.17803}, url = {http://geodesic.mathdoc.fr/item/NUMA_1969__13_131902/} }
J.H. BRAMBLE. On the Convergence of Difference Approximations to Weak Solutions of Dirichlet's Problem.. Numerische Mathematik, Tome 13 (1969), pp. 101-111. http://geodesic.mathdoc.fr/item/NUMA_1969__13_131902/