%0 Journal Article %A O. A. Ladyzhenskaya %A N. N. Ural'tseva %T H\"older continuity of solutions and their derivatives for linear and quasi-linear equations of elliptic and parabolic type %J Doklady Akademii Nauk %D 1964 %P 1258-1261 %V 155 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_155_6_a4/ %G ru %F DAN_1964_155_6_a4