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@article{NUMA_1992__62_1_133648, author = {P. Oswald}, title = {On a hierarchical basis multilevel method with nonconforming {P1} elements.}, journal = {Numerische Mathematik}, pages = {189--212}, publisher = {mathdoc}, volume = {62}, number = {1}, year = {1992}, zbl = {0767.65078}, url = {http://geodesic.mathdoc.fr/item/NUMA_1992__62_1_133648/} }
P. Oswald. On a hierarchical basis multilevel method with nonconforming P1 elements.. Numerische Mathematik, Tome 62 (1992) no. 1, pp. 189-212. http://geodesic.mathdoc.fr/item/NUMA_1992__62_1_133648/