@article{DE_2001_37_4_a12,
     author = {M. G. Blizorukov and Yu. F. Dolgii},
     title = {Periodic {Solutions} of a {System} of {Linear} {Difference} {Equations} with {Continuous} {Argument}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {538--546},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2001_37_4_a12/}
}