TY  - JOUR
AU  - A. D. Aleksandrov
TI  - A theorem on triangles in a metric space and some of its applications
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1951
SP  - 5
EP  - 23
VL  - 38
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_1951_38_a1/
LA  - ru
ID  - TM_1951_38_a1
ER  -