@article{MZM_1987_41_2_a14,
     author = {J. G. Horv\'ath and M. I. Shtogrin},
     title = {Two extremal problems for {Dirichlet--Voronoi} domains},
     journal = {Matemati\v{c}eskie zametki},
     pages = {257--264},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1987_41_2_a14/}
}