@article{SJIM_2002_5_1_a5,
     author = {N. F. Zhikhalkina and R. T. Faizullin},
     title = {The problem of minimizing the total costs of transporting petroleum products},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {63--73},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2002_5_1_a5/}
}