%0 Journal Article %A M. K. Fage %T Integral representations of analytical operator functions of one variable %J Doklady Akademii Nauk %D 1957 %P 874-877 %V 115 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_115_5_a6/ %G ru %F DAN_1957_115_5_a6