@article{3016,
author = {V\'azquez, Juan L.},
title = {Symmetrization in nonlinear parabolic equations},
journal = {Portugaliae mathematica},
volume = {41},
year = {1982},
pages = {339-346},
zbl = {0524.35061},
mrnumber = {0766862},
language = {en},
url = {http://dml.mathdoc.fr/item/3016}
}
Vázquez, Juan L. Symmetrization in nonlinear parabolic equations. Portugaliae mathematica, Tome 41 (1982) pp. 339-346. http://gdmltest.u-ga.fr/item/3016/