@article{MP_1999_a7,
     author = {S. V. Duzhin and S. V. Chmutov},
     title = {{\CYRU}{\cyrz}{\cyrl}{\cyrery} {\cyri} {\cyri}{\cyrh} {\cyri}{\cyrn}{\cyrv}{\cyra}{\cyrr}{\cyri}{\cyra}{\cyrn}{\cyrt}{\cyrery}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {59--93},
     publisher = {mathdoc},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1999_a7/}
}