%0 Journal Article %A S. Rolewicz %T On perturbations of deviations of periodic differential-difference equations in Banach spaces %J Studia Mathematica %D 1973 %P 31-35 %V 47 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-47-1-31-35/ %R 10.4064/sm-47-1-31-35 %G en %F 10_4064_sm_47_1_31_35