@article{IM2_1975_9_5_a7,
     author = {A. P. Bulanov},
     title = {Rational approximation of continuous functions of finite variation},
     journal = {Izvestiya. Mathematics},
     pages = {1081--1118},
     year = {1975},
     volume = {9},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1975_9_5_a7/}
}