%0 Journal Article %A C. Grajek %T On determining bounded solutions of linear differential equations by the small parameter method %J Colloquium Mathematicum %D 1962 %P 305-312 %V 9 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-9-2-305-312/ %R 10.4064/cm-9-2-305-312 %G en %F 10_4064_cm_9_2_305_312