@article{DE_1969_5_10_a10,
     author = {B. N. Khimchenko},
     title = {The behavior of a superharmonic function near the boundary of a region of type $A^{(1)}$},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1845--1853},
     publisher = {mathdoc},
     volume = {5},
     number = {10},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_10_a10/}
}