@article{GDZPPN002100797,
title = {Embedding and surrounding with positive mean curvature.},
journal = {Inventiones mathematicae},
volume = {75},
year = {1984},
pages = {399-420},
zbl = {0555.53027},
url = {http://dml.mathdoc.fr/item/GDZPPN002100797}
}
Lawson, H.B., Jr; Michelsohn, M.-L. Embedding and surrounding with positive mean curvature.. Inventiones mathematicae, Tome 75 (1984) pp. 399-420. http://gdmltest.u-ga.fr/item/GDZPPN002100797/