@article{DE_1978_14_1_a13,
     author = {M. M. Khachev},
     title = {The {Dirichlet} problem for a generalized {Lavrent'ev--Bicadze} equation in a rectangular domain},
     journal = {Differencialʹnye uravneni\^a},
     pages = {136--139},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_1_a13/}
}