%0 Journal Article %A Caffarelli, Luis A %A Roquejoffre, Jean-Michel %T A nonlinear oblique derivative boundary value problem for the heat equation : analogy with the porous medium equation %J Annales de l'I.H.P. Analyse non linéaire %D 2002 %P 41-80 %V 19 %N 1 %I Elsevier %U http://www.numdam.org/item/AIHPC_2002__19_1_41_0/ %G en %F AIHPC_2002__19_1_41_0