@article{DAN_1957_117_2_a2,
     author = {A. I. Zhukov},
     title = {The convergence of a solution of a difference equation to a solution of a differential equation},
     journal = {Doklady Akademii Nauk},
     pages = {174--176},
     publisher = {mathdoc},
     volume = {117},
     number = {2},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_117_2_a2/}
}