%0 Journal Article %A I. K. Lifanov %A L. N. Poltavskii %T Spaces of Fractional Quotients of Periodic Functions %J Differencialʹnye uravneniâ %D 2003 %P 687-709 %V 39 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_5_a11/ %G ru %F DE_2003_39_5_a11