@article{BGUMI_2021_3_a0,
     author = {P. G. Potseiko and Y. A. Rovba},
     title = {On rational {Abel} {\textendash} {Poisson} means on a segment and approximations of {Markov} functions},
     journal = {Journal of the Belarusian State University. Mathematics and Informatics},
     pages = {6--24},
     publisher = {mathdoc},
     volume = {3},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/BGUMI_2021_3_a0/}
}