@article{SM_2021_212_4_a0,
     author = {P. A. Borodin and K. S. Shklyaev},
     title = {Approximation by simple partial fractions in unbounded domains},
     journal = {Sbornik. Mathematics},
     pages = {449--474},
     publisher = {mathdoc},
     volume = {212},
     number = {4},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2021_212_4_a0/}
}