@article{DE_1991_27_3_a24,
     author = {I. P. Martynov and V. A. Pron'ko},
     title = {Single-valued solutions of a class of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {541--544},
     publisher = {mathdoc},
     volume = {27},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_3_a24/}
}