@article{DE_1993_29_8_a13,
     author = {M. Yu. Kokurin},
     title = {Asymptotic behavior of periodic solutions of a class of operator-differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1400--1407},
     publisher = {mathdoc},
     volume = {29},
     number = {8},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1993_29_8_a13/}
}