TY  - JOUR
AU  - A. A. Ageev
TI  - Complexity of the network problem of a median on planar lattices
JO  - Matematičeskie trudy
PY  - 1994
SP  - 6
EP  - 13
VL  - 27
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MT_1994_27_a1/
LA  - ru
ID  - MT_1994_27_a1
ER  -