%0 Journal Article %A A. Kh. Gelig %T Stability of pulse systems with frequency modulation %J Doklady Akademii Nauk %D 1969 %P 253-256 %V 185 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_185_2_a2/ %G ru %F DAN_1969_185_2_a2