@article{DAN_1973_212_3_a4,
     author = {L. I. Kamynin and B. N. Khimchenko},
     title = {On {Lipschitz} boundary estimates for a solution of a second-order elliptic-parabolic equation},
     journal = {Doklady Akademii Nauk},
     pages = {544--547},
     publisher = {mathdoc},
     volume = {212},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_212_3_a4/}
}