@article{DAN_1962_142_6_a11,
     author = {V. A. Tupchiev},
     title = {On the existence, uniqueness and asymptotic behaviour of the solution of a boundary-value problem 
},
     journal = {Doklady Akademii Nauk},
     pages = {1261--1264},
     publisher = {mathdoc},
     volume = {142},
     number = {6},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_142_6_a11/}
}