%0 Journal Article %A Kopáčková-Suchá, Marie %T On the weakly nonlinear wave equation involving a small parameter at the highest derivative %J Czechoslovak Mathematical Journal %D 1969 %P 469-491 %V 19 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1969.100915/ %R 10.21136/CMJ.1969.100915 %G en %F 10_21136_CMJ_1969_100915