@article{VTPMK_2017_4_a4,
     author = {G. M. Solomakha and E. V. Turkenich},
     title = {Optimization of the trade margin of the interdependent goods},
     journal = {Vestnik Tverskogo gosudarstvennogo universiteta. Seri\^a Prikladna\^a matematika},
     pages = {59--71},
     publisher = {mathdoc},
     number = {4},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTPMK_2017_4_a4/}
}