@article{DA_2016_23_4_a0,
     author = {A. V. Kononov and P. A. Kononova},
     title = {On minimizing dataset transfer time in an acyclic network with four servers},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {5--25},
     publisher = {mathdoc},
     volume = {23},
     number = {4},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2016_23_4_a0/}
}