@article{DE_1967_3_5_a6,
     author = {N. A. Lukashevich},
     title = {The theory of {Painlev\'e's} fourth equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {771--780},
     publisher = {mathdoc},
     volume = {3},
     number = {5},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1967_3_5_a6/}
}