TY  - JOUR
AU  - F. F. Dragan
AU  - K. F. Prisakar'
AU  - V. D. Chepoi
TI  - The location problem on graphs and the Helly problem
JO  - Diskretnaya Matematika
PY  - 1992
SP  - 67
EP  - 73
VL  - 4
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DM_1992_4_4_a6/
LA  - ru
ID  - DM_1992_4_4_a6
ER  -