%0 Journal Article %A B. P. Bogoslovskii %A S. I. Ostroumov %T Equations with fixed transcendental and essentially singular points %J Differencialʹnye uravneniâ %D 1983 %P 1659-1667 %V 19 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_10_a0/ %G ru %F DE_1983_19_10_a0