TY  - JOUR
AU  - V. M. Montlevich
TI  - On the submodularity of the profit function in a problem of transport planning
JO  - Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ
PY  - 2014
SP  - 48
EP  - 54
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VSGU_2014_10_a4/
LA  - ru
ID  - VSGU_2014_10_a4
ER  -