Nonlinear elliptic and parabolic equations of the second order
N.V. Krylov ; [translated from the Russian by P.L. Buzytsky]
(Mathematics and its applications, Soviet ser.)
D. Reidel Pub. Co. , Sold and distributed in the U.S.A. and Canada by Kluwer Academic Publushers, c1987
Nelineǐnye ėllipticheskie i parabolicheskie uravnenii︠a︡ vtorogo pori︠a︡dka