%0 Journal Article %A È. N. Bereslavskii %T On differential equations of the Fuchs class associated with the conformal mapping of circular polygons in polar grids %J Differencialʹnye uravneniâ %D 1997 %P 296-301 %V 33 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1997_33_3_a1/ %G ru %F DE_1997_33_3_a1