%0 Journal Article %A H.B., Jr Lawson %A M.-L. Michelsohn %T Embedding and surrounding with positive mean curvature. %J Inventiones mathematicae %D 1984 %P 399-420 %V 77 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1984__77_143152/ %F IM_1984__77_143152