@article{RM_1994_49_3_a7,
     author = {V. A. Kalyagin},
     title = {On rational approximations of the resolvent function of a~second-order difference operator},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {187--189},
     publisher = {mathdoc},
     volume = {49},
     number = {3},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1994_49_3_a7/}
}