@article{DAN_1985_284_6_a8,
     author = {Ho K'ang Cher},
     title = {A nonlocal boundary value problem for an elliptic equation with},
     journal = {Doklady Akademii Nauk},
     pages = {1317--1321},
     year = {1985},
     volume = {284},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1985_284_6_a8/}
}