%0 Journal Article
%A G. Ananda Swarup
%T Projective Planes in Irreducible 3-Manifolds.
%J Mathematische Zeitschrift
%D 1973
%P 305-318
%V 132
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1973__132_171931/
%F MZ_1973__132_171931