%0 Journal Article
%A Ying-Qing Wu
%T On planarity of graphs in 3-manifolds.
%J Commentarii mathematici Helvetici
%D 1992
%P 635-647
%V 67
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1992__67_3_140288/
%F CMH_1992__67_3_140288