@article{MZM_1979_26_5_a15,
     author = {Yu. I. Makovoz},
     title = {Diameters of {Sobolev} classes and splines deviating least from zero},
     journal = {Matemati\v{c}eskie zametki},
     pages = {805--812},
     publisher = {mathdoc},
     volume = {26},
     number = {5},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1979_26_5_a15/}
}