@article{DE_1974_10_11_a17,
     author = {L. M. Gershtein and P. E. Sobolevskii},
     title = {Coercive solvability of general boundary value problems for second order elliptic differential equations in a {Banach} space},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2059--2061},
     publisher = {mathdoc},
     volume = {10},
     number = {11},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_11_a17/}
}