@article{ZVMMF_1961_1_3_a10,
     author = {V. V. Ivanov and E. A. Karagodova and \`E. K. Yadrenko},
     title = {Approximate methods of determining the dynamic characteristics of controlled systems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {523--541},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1961_1_3_a10/}
}