@article{MZM_1990_48_4_a6,
     author = {S. V. Konyagin},
     title = {Parametric approximation of piecewise analytic functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {58--68},
     publisher = {mathdoc},
     volume = {48},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1990_48_4_a6/}
}