@article{DE_1994_30_5_a11,
     author = {M. M. Zainulabidov},
     title = {On a problem with nonlocal boundary conditions when the lines of change of type in a mixed domain are perpendicular},
     journal = {Differencialʹnye uravneni\^a},
     pages = {832--837},
     publisher = {mathdoc},
     volume = {30},
     number = {5},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_5_a11/}
}