%0 Journal Article
%A C.McA. Gordon
%A D.W. Sumners
%T Knotted Ball Pairs whose Product with an Interval is Unknotted.
%J Mathematische Annalen
%D 1975
%P 47-52
%V 217
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1975__217_162752/
%F MAN_1975__217_162752