%0 Journal Article %A K. G. Malyutin %A M. V. Kabanko %A V. A. Malyutin %T Extremal problems in theory of central Wiman-Valiron index %J Ufa mathematical journal %D 2021 %P 68-76 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UFA_2021_13_1_a5/ %G en %F UFA_2021_13_1_a5