%0 Journal Article %A G. A. Skotnikova %A N. M. Gol'dina %T Ranges of values of certain coefficient systems of functions typically real in a~ring %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1968 %P 130-142 %V 94 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1968_94_a10/ %G ru %F TM_1968_94_a10