%0 Journal Article
%A C. D. Papakyriakopoulos
%T On Dehn's lemma and the asphericity of knots
%J Matematika
%D 1958
%P 23-47
%V 2
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAT_1958_2_4_a1/
%G ru
%F MAT_1958_2_4_a1