@article{TRSPY_1987_180_a5,
     author = {N. T. Amanov},
     title = {Approximation of functions continuous on a~half-line by {Szasz--Mirak'yan} operators},
     journal = {Informatics and Automation},
     pages = {27--28},
     publisher = {mathdoc},
     volume = {180},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a5/}
}