@article{DE_1974_10_8_a0,
     author = {A. B. Antonevich and V. B. Ryvkin},
     title = {The normal solvability of the problem of the periodic solutions of a linear differential equation with deviating argument},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1347--1353},
     publisher = {mathdoc},
     volume = {10},
     number = {8},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_8_a0/}
}