%0 Journal Article %A J. A. Boguslavskiy %A T. V. Pyatenko %T Identification of perturbations of a dynamical system %J Doklady Akademii Nauk %D 1990 %P 549-553 %V 310 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_310_3_a8/ %G ru %F DAN_1990_310_3_a8