@article{DE_1994_30_6_a0,
     author = {R. G. Aliev},
     title = {On the solvability of an initial value problem for an equation with retarded argument with unbounded operator coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {923--930},
     publisher = {mathdoc},
     volume = {30},
     number = {6},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_6_a0/}
}