%0 Journal Article %A G. G. Braichev %T On Stolz's theorem and its conversion %J Eurasian mathematical journal %D 2019 %P 8-19 %V 10 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/EMJ_2019_10_3_a0/ %G en %F EMJ_2019_10_3_a0