@article{ZVMMF_2009_49_10_a4,
     author = {A. I. Egorov and L. N. Znamenskaya},
     title = {State observability of elastic vibrations in distributed and lumped parameter systems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1779--1784},
     year = {2009},
     volume = {49},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2009_49_10_a4/}
}