%0 Journal Article %A E. P. Belan %A A. M. Eyshinsky %T Linear differential equations that are invariant with respect to a finite group of linear-fractional substitutions %J Differencialʹnye uravneniâ %D 1972 %P 2073-2075 %V 8 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_11_a18/ %G ru %F DE_1972_8_11_a18