@article{MZ_1980__173_172966,
     author = {Manfredo do Carmo and Joao Lucas Barbosa},
     title = {Stability of {Minimal} {Surfaces} and {Eigenvalues} of the {Laplacian.}},
     journal = {Mathematische Zeitschrift},
     pages = {13--28},
     publisher = {mathdoc},
     volume = {173},
     year = {1980},
     zbl = {0417.53033},
     url = {http://geodesic.mathdoc.fr/item/MZ_1980__173_172966/}
}