@article{SM_1980_36_3_a6,
     author = {P. P. Petrushev},
     title = {Uniform rational approximations of functions of class~$V_r$},
     journal = {Sbornik. Mathematics},
     pages = {389--403},
     publisher = {mathdoc},
     volume = {36},
     number = {3},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1980_36_3_a6/}
}