@article{SM_1978_34_6_a2,
     author = {L. I. Kamynin and B. N. Khimchenko},
     title = {On local estimates near the boundary of solutions of a~second order equation with nonnegative characteristic form},
     journal = {Sbornik. Mathematics},
     pages = {715--735},
     publisher = {mathdoc},
     volume = {34},
     number = {6},
     year = {1978},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1978_34_6_a2/}
}