@article{DE_1998_34_6_a18,
     author = {I. V. Tikhonov},
     title = {On the solvability of a problem with a nonlocal integral condition for a differential equation in a {Banach} space},
     journal = {Differencialʹnye uravneni\^a},
     pages = {841--843},
     publisher = {mathdoc},
     volume = {34},
     number = {6},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_6_a18/}
}