%0 Journal Article
%A Bobby Winters
%T Properly homotopic nontrivial planes are isotopic
%J Fundamenta Mathematicae
%D 1994
%P 141-152
%V 146
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-146-2-141-152/
%R 10.4064/fm-146-2-141-152
%G en
%F 10_4064_fm_146_2_141_152