%0 Journal Article %A Faycal Bouchelaghem %A Abdelouaheb Ardjouni %A Ahcene Djoudi %T Existence and exponential stability of positive periodic solutions for second-order dynamic equations %J Ural mathematical journal %D 2020 %P 42-53 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UMJ_2020_6_1_a3/ %G en %F UMJ_2020_6_1_a3