@article{MP_2008_a16,
     author = {S. B. Gashkov},
     title = {$a${-{\CYRD}{\cyri}{\cyra}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyrery}} {\cyri} {\cyrt}{\cyru}{\cyrr}{\cyra}{\cyrn}{\cyro}{\cyrv}{\cyrs}{\cyrk}{\cyri}{\cyre} {\cyrg}{\cyrr}{\cyra}{\cyrf}{\cyrery}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {161--175},
     publisher = {mathdoc},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2008_a16/}
}