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@article{NUMA_1991__59_8_133553, author = {E.F. D'Azevedo and R.B. Simpson}, title = {On optimal triangular meshes for minimizing the gradient error.}, journal = {Numerische Mathematik}, pages = {321--348}, publisher = {mathdoc}, volume = {59}, number = {8}, year = {1991}, zbl = {0724.65006}, url = {http://geodesic.mathdoc.fr/item/NUMA_1991__59_8_133553/} }
E.F. D'Azevedo; R.B. Simpson. On optimal triangular meshes for minimizing the gradient error.. Numerische Mathematik, Tome 59 (1991) no. 8, pp. 321-348. http://geodesic.mathdoc.fr/item/NUMA_1991__59_8_133553/