@article{MZM_1972_12_4_a7,
     author = {I. F. Sharygin},
     title = {A lower bound for $n$-diameters},
     journal = {Matemati\v{c}eskie zametki},
     pages = {413--419},
     publisher = {mathdoc},
     volume = {12},
     number = {4},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1972_12_4_a7/}
}