%0 Journal Article %A G. V. Badalyan %T Condition for the expansion of functions into a quasipower series within the fundamental interval %J Doklady Akademii Nauk %D 1961 %P 9-11 %V 136 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_136_1_a0/ %G ru %F DAN_1961_136_1_a0