@article{ZVMMF_1999_39_4_a18,
     author = {M. V. Kurkina},
     title = {On the correctness of linear closure in a class of estimation algorithms},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {697--703},
     publisher = {mathdoc},
     volume = {39},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1999_39_4_a18/}
}