@article{IVM_2018_12_a1,
     author = {V. I. Danchenko and M. A. Komarov and P. V. Chunaev},
     title = {Extremal and approximative properties of simple partial fractions},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {9--49},
     publisher = {mathdoc},
     number = {12},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2018_12_a1/}
}