@article{MZM_1983_34_3_a5,
     author = {V. E. Maiorov},
     title = {Diameters of classes of functions defined on a line},
     journal = {Matemati\v{c}eskie zametki},
     pages = {355--366},
     publisher = {mathdoc},
     volume = {34},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1983_34_3_a5/}
}