@article{SM_2015_206_2_a7,
     author = {A. A. Pekarskii},
     title = {Conjugate functions and their connection with uniform rational and piecewise-polynomial approximations},
     journal = {Sbornik. Mathematics},
     pages = {333--340},
     publisher = {mathdoc},
     volume = {206},
     number = {2},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2015_206_2_a7/}
}