%0 Journal Article %A B. F. Bylov %A È. A. Tikhonova %T The exponents of a piecewise-constant three-dimensional system %J Differencialʹnye uravneniâ %D 1987 %P 1483-1497 %V 23 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_9_a1/ %G ru %F DE_1987_23_9_a1