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@article{JRAM_1973__260_151309, author = {Paul Lewis}, title = {Variational semi-regularity and norm convergence.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {21--30}, publisher = {mathdoc}, volume = {260}, year = {1973}, zbl = {0265.46047}, url = {http://geodesic.mathdoc.fr/item/JRAM_1973__260_151309/} }
Paul Lewis. Variational semi-regularity and norm convergence.. Journal für die reine und angewandte Mathematik, Tome 260 (1973), pp. 21-30. http://geodesic.mathdoc.fr/item/JRAM_1973__260_151309/