%0 Journal Article
%A Janusz Grabowski
%T Free subgroups of diffeomorphism groups
%J Fundamenta Mathematicae
%D 1988
%P 103-121
%V 131
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-131-2-103-121/
%R 10.4064/fm-131-2-103-121
%G en
%F 10_4064_fm_131_2_103_121