@article{PFMT_2015_1_a9,
     author = {A. V. Astafyeva},
     title = {Asymptotics of diagonal {Hermite--Pade} approximants for a system of four exponentials},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {53--57},
     publisher = {mathdoc},
     number = {1},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2015_1_a9/}
}