%0 Journal Article %A V. I. Buslaev %T Relations for the coefficients, and singular points of a~function %J Sbornik. Mathematics %D 1988 %P 349-377 %V 59 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1988_59_2_a5/ %G en %F SM_1988_59_2_a5