Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1982__41_1-4_115506, author = {V\'azquez, Juan L.}, title = {Symmetrization in nonlinear parabolic equations}, journal = {Portugaliae mathematica}, pages = {339--346}, publisher = {mathdoc}, volume = {41}, number = {1-4}, year = {1982}, mrnumber = {0766862}, zbl = {0524.35061}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1982__41_1-4_115506/} }
Vázquez, Juan L. Symmetrization in nonlinear parabolic equations. Portugaliae mathematica, Tome 41 (1982) no. 1-4, pp. 339-346. http://geodesic.mathdoc.fr/item/PORMA_1982__41_1-4_115506/