TY  - JOUR
AU  - Yu. L. Kostyuk
TI  - The travelling salesman problem: improved lower bound in the branch-and-bound method
JO  - Prikladnaâ diskretnaâ matematika
PY  - 2013
SP  - 73
EP  - 81
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PDM_2013_4_a7/
LA  - ru
ID  - PDM_2013_4_a7
ER  -