@article{DE_1971_7_9_a9,
     author = {V. I. Korzyuk and N. J. Yurchuk},
     title = {A conjugation problem for non-stationary abstract linear differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1629--1638},
     publisher = {mathdoc},
     volume = {7},
     number = {9},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_9_a9/}
}