%0 Journal Article %A Reinhard Schultz %T Closed curves and circle homomorphisms in groups of diffeomorphisms %J Fundamenta Mathematicae %D 1977 %P 141-146 %V 95 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-95-2-141-146/ %R 10.4064/fm-95-2-141-146 %G en %F 10_4064_fm_95_2_141_146