%0 Journal Article %A V. I. Gromak %T The sine-Gordon equation and the third Painlev\'e equation %J Differencialʹnye uravneniâ %D 1982 %P 1984-1986 %V 18 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1982_18_11_a20/ %G ru %F DE_1982_18_11_a20