@article{DE_1994_30_9_a12,
     author = {A. I. Astrovskii and S. K. Korzhenevich},
     title = {A posteriori observation-estimation problems for two-parameter discrete systems with a fuzzy description of noise and perturbations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1594--1600},
     publisher = {mathdoc},
     volume = {30},
     number = {9},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_9_a12/}
}