@article{YJOR_1997_7_2_a3,
     author = {Vassil Sgurev and Mariana Nikolova},
     title = {Capacity and {Maximal} {Value} of the {Network} {Flow} with {Multiplicative} {Constraints}},
     journal = {Yugoslav journal of operations research},
     pages = {231 },
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {1997},
     zbl = {0949.90007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_1997_7_2_a3/}
}