@article{TRSPY_1961_60_a16,
     author = {G. N. Yakovlev},
     title = {Boundary properties of a class of functions},
     journal = {Informatics and Automation},
     pages = {325--349},
     publisher = {mathdoc},
     volume = {60},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1961_60_a16/}
}