@article{KUKZ_1969_6_6_a3,
     author = {A. V. Galanin and N. F. Salikhov and \`E. G. Frolova},
     title = {{\CYRK}~{\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyre}
},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {31--35},
     publisher = {mathdoc},
     volume = {6},
     number = {6},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1969_6_6_a3/}
}