@article{MZM_1969_5_4_a4,
     author = {L. B. Sofman},
     title = {Diameters of octahedra},
     journal = {Matemati\v{c}eskie zametki},
     pages = {429--436},
     publisher = {mathdoc},
     volume = {5},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1969_5_4_a4/}
}