@article{DE_1978_14_11_a2,
     author = {M. L. Cartwright and H. P. F. Swinnert{\cyro}n-Dyer},
     title = {Boundedness theorems for some second-order differential {equations.~IV}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1941--1979},
     publisher = {mathdoc},
     volume = {14},
     number = {11},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_11_a2/}
}