@article{IM2_2015_79_3_a0,
     author = {M. A. Komarov},
     title = {A criterion for the best uniform approximation by simple partial fractions in terms of alternance},
     journal = {Izvestiya. Mathematics },
     pages = {431--448},
     publisher = {mathdoc},
     volume = {79},
     number = {3},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2015_79_3_a0/}
}