TY  - JOUR
AU  - Yu. D. Burago
TI  - On proportional approximation of a~metric
JO  - Informatics and Automation
PY  - 1965
SP  - 120
EP  - 123
VL  - 76
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1965_76_a9/
LA  - ru
ID  - TRSPY_1965_76_a9
ER  -