@article{IVM_1960_5_a13,
     author = {Sh. I. Nanava},
     title = {On the representation of numbers by positive quadratic forms},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {116--128},
     publisher = {mathdoc},
     number = {5},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1960_5_a13/}
}