@article{GDZPPN002106744,
title = {On the uniqueness of isoperimetric solutions and imbedded soap bubbles in non-compact symmetric spaces, I.},
journal = {Inventiones mathematicae},
volume = {96},
year = {1989},
pages = {39-58},
zbl = {0682.53057},
url = {http://dml.mathdoc.fr/item/GDZPPN002106744}
}
Hsiang, Wu-yi; Hsiang, Wu-Teh. On the uniqueness of isoperimetric solutions and imbedded soap bubbles in non-compact symmetric spaces, I.. Inventiones mathematicae, Tome 96 (1989) pp. 39-58. http://gdmltest.u-ga.fr/item/GDZPPN002106744/