@article{SM_1971_13_2_a7,
     author = {T. A. Leont'eva},
     title = {Representation of functions in the unit disk by series of rational fractions},
     journal = {Sbornik. Mathematics},
     pages = {309--322},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1971_13_2_a7/}
}