@article{PDM_2013_4_a9,
     author = {R. E. Shangin},
     title = {Exact algorithm for solving discrete {Weber} problem for a~cycle},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {96--102},
     publisher = {mathdoc},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2013_4_a9/}
}