%0 Journal Article %A L. A. Balashov %A Yu. A. Dreizin %A M. S. Mel'nikov %T Approximations of the exponential function and relative closeness of stable signals %J Sbornik. Mathematics %D 1993 %P 291-307 %V 74 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1993_74_2_a1/ %G en %F SM_1993_74_2_a1