@article{TRSPY_1935_9_a1,
     author = {I. M. Vinogradov},
     title = {The number of lattice points in a~sphere},
     journal = {Informatics and Automation},
     pages = {17--38},
     publisher = {mathdoc},
     volume = {9},
     year = {1935},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1935_9_a1/}
}