%0 Journal Article %A MichaƂ Kisielewicz %T On some applications of Bogoliubov method for hyperbolic equations %J Annales Polonici Mathematici %D 1975 %P 1-13 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-31-1-1-13/ %R 10.4064/ap-31-1-1-13 %G en %F 10_4064_ap_31_1_1_13