@article{GDZPPN002229749,
title = {Maximum principle for hypersurfaces.},
journal = {Manuscripta mathematica},
volume = {64},
year = {1989},
pages = {55-76},
zbl = {0678.53048},
url = {http://dml.mathdoc.fr/item/GDZPPN002229749}
}
Eschenburg, J.-H. Maximum principle for hypersurfaces.. Manuscripta mathematica, Tome 64 (1989) pp. 55-76. http://gdmltest.u-ga.fr/item/GDZPPN002229749/