@article{DE_1991_27_10_a6,
     author = {A. V. Metel'skii},
     title = {Classes of equivalent states of linear autonomous functional-differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1703--1712},
     publisher = {mathdoc},
     volume = {27},
     number = {10},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_10_a6/}
}