@article{DAN_1990_310_4_a8,
     author = {N. I. Grachev and M. A. Krasnosel'skii and N. A. Kuznetsov and A. V. Pokrovskii},
     title = {On the identification of a linear system on the basis of two},
     journal = {Doklady Akademii Nauk},
     pages = {807--809},
     publisher = {mathdoc},
     volume = {310},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_310_4_a8/}
}