TY - JOUR AU - G. G. Braichev TI - On Stolz's theorem and its conversion JO - Eurasian mathematical journal PY - 2019 SP - 8 EP - 19 VL - 10 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EMJ_2019_10_3_a0/ LA - en ID - EMJ_2019_10_3_a0 ER -