@article{MP_2000_3_4_a15, author = {M. N. Vyalyi}, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyra} {{\CYRG}{\cyre}{\cyrr}{\cyrk}{\cyro}} {\cyro}~{\cyrch}{\cyre}{\cyrm}{\cyrp}{\cyri}{\cyro}{\cyrn}{\cyra}{\cyrh}}, journal = {Matematicheskoe Prosveshchenie}, pages = {209--210}, year = {2000}, volume = {Ser. 3, 4}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_2000_3_4_a15/} }