%0 Journal Article %A Andres, Ján %A Staněk, Svatoslav %T Note to the Lagrange stability of excited pendulum type equations %J Mathematica slovaca %D 1993 %P 617-630 %V 43 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1993__43_5_a5/ %G en %F MASLO_1993__43_5_a5