@article{ZVMMF_1979_19_3_a11,
     author = {A. V. Lapin},
     title = {Investigation of some non-linear problems of filtering theory},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {689--700},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1979_19_3_a11/}
}