@article{DE_1982_18_11_a20,
     author = {V. I. Gromak},
     title = {The {sine-Gordon} equation and the third {Painlev\'e} equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1984--1986},
     publisher = {mathdoc},
     volume = {18},
     number = {11},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1982_18_11_a20/}
}