%0 Journal Article %A M. O. Osintsev %A V. A. Sobolev %T Reduction of dimension of optimal estimation problems for dynamical systems with singular perturbations %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 2014 %P 50-64 %V 54 %N 1 %U http://geodesic.mathdoc.fr/item/ZVMMF_2014_54_1_a3/ %G ru %F ZVMMF_2014_54_1_a3