@article{GDZPPN00241547X, title = {A Pertubation Theorem for Surfaces of Constant Mean Curvature.}, journal = {Mathematische Zeitschrift}, volume = {142}, year = {1975}, pages = {253-264}, zbl = {0295.53003}, url = {http://dml.mathdoc.fr/item/GDZPPN00241547X} }
Tomi, Friedrich. A Pertubation Theorem for Surfaces of Constant Mean Curvature.. Mathematische Zeitschrift, Tome 142 (1975) pp. 253-264. http://gdmltest.u-ga.fr/item/GDZPPN00241547X/