@article{DE_1991_27_9_a7,
     author = {Yu. F. Dolgii and N. V. Plastinin},
     title = {Asymptotics of the eigenvalues of the monodromy operator for periodic systems of differential equations with deviating argument of neutral type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1538--1543},
     publisher = {mathdoc},
     volume = {27},
     number = {9},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_9_a7/}
}