%0 Journal Article %A O. A. Ladyzhenskaya %A N. N. Ural'tseva %T On estimates of $\max|u_x|$ for solutions of quasilinear elliptic and parabolic equations of the general type and on some existence theorems %J Zapiski Nauchnykh Seminarov POMI %D 1984 %P 90-107 %V 138 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1984_138_a6/ %G ru %F ZNSL_1984_138_a6