@article{DAN_1965_160_5_a14,
     author = {N. E. Tovmasyan},
     title = {Some boundary value problems for a system of second-order elliptic equations which do not satisfy {Lopatinskii{\textquoteright}s} condition},
     journal = {Doklady Akademii Nauk},
     pages = {1028--1031},
     publisher = {mathdoc},
     volume = {160},
     number = {5},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_5_a14/}
}