For citations:
Bogachev V.A., Kravets A.S., Ignat’eva O.V., Bogachev T.V. Mathematical methods in distribution optimization of grain freight flows directed to small ports of the Azov-Black Sea basin. Science and Technology in Transport. 2021;(3):56-63. (In Russ.) https://doi.org/10.53883/20749325_2021_03_56