%0 Journal Article %A S. Hartman %A C. Ryll-Nardzewski %T Almost periodic extensions of functions %J Colloquium Mathematicum %D 1964 %P 23-39 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-12-1-23-39/ %R 10.4064/cm-12-1-23-39 %G en %F 10_4064_cm_12_1_23_39