%0 Journal Article %A S. V. Yushmanov %T A general method for evaluating the metric characteristics of a %J Doklady Akademii Nauk %D 1989 %P 52-54 %V 306 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_306_1_a10/ %G ru %F DAN_1989_306_1_a10