@article{KUKZ_1974_11_11_a9,
     author = {O. M. Kiselev and V. L. Fedyaev},
     title = {{\CYRO}~{\cyrs}{\cyrt}{\cyrr}{\cyru}{\cyrishrt}{\cyrn}{\cyro}{\cyrm} {\cyrt}{\cyre}{\cyrch}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrzh}{\cyri}{\cyrd}{\cyrk}{\cyro}{\cyrs}{\cyrt}{\cyri}
},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {73--82},
     publisher = {mathdoc},
     volume = {11},
     number = {11},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1974_11_11_a9/}
}