%0 Journal Article
%A Ronnie Lee
%A D.M. Wilczynski
%T Locally flat 2-spheres in simply connected 4-manifolds.
%J Commentarii mathematici Helvetici
%D 1990
%P 388-412
%V 65
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140202/
%F CMH_1990__65_3_140202