@article{10_4064_aa_54_1_9_36,
     author = {{\CYRG}. {\CYRL}{\cyro}{\cyrm}{\cyra}{\cyrd}{\cyrz}{\cyre}},
     title = {{\CYRO} {\cyrp}{\cyrr}{\cyre}{\cyrd}{\cyrs}{\cyrt}{\cyra}{\cyrv}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrch}{\cyri}{\cyrs}{\cyre}{\cyrl} {\cyrs}{\cyru}{\cyrm}{\cyrm}{\cyra}{\cyrm}{\cyri} {\cyrk}{\cyrv}{\cyra}{\cyrd}{\cyrr}{\cyra}{\cyrt}{\cyri}{\cyrch}{\cyrn}{\cyrery}{\cyrh} {\cyrf}{\cyro}{\cyrr}{\cyrm} $x_{1}^{2} + x_{1}x_{2} + x_{2}^{2}$},
     journal = {Acta Arithmetica},
     pages = {9--36},
     publisher = {mathdoc},
     volume = {54},
     number = {1},
     year = {1989},
     doi = {10.4064/aa-54-1-9-36},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-54-1-9-36/}
}