@article{TRSPY_1981_158_a0,
     author = {E. P. Baranovskii and S. S. Ryshkov and S. Sh. Shushbaev},
     title = {A~geometric estimate of the number of representations of a~real number by a~positive quadratic form and an estimate of the remainder term of the multidimensiona},
     journal = {Informatics and Automation},
     pages = {3--8},
     publisher = {mathdoc},
     volume = {158},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1981_158_a0/}
}