@article{ZVMMF_1986_26_9_a3,
     author = {\`E. D. Alymkulov and N. K. Luk'yanov},
     title = {A method for the approximate aggregation of linear systems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1316--1324},
     year = {1986},
     volume = {26},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1986_26_9_a3/}
}