@article{01883649,
title = {The double bubble problem in spherical and hyperbolic space.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {30},
year = {2002},
pages = {641-699},
doi = {10.1155/S0161171202207188},
zbl = {1036.49039},
language = {en},
url = {http://dml.mathdoc.fr/item/01883649}
}
Cotton, Andrew; Freeman, David. The double bubble problem in spherical and hyperbolic space.. International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 641-699. doi : 10.1155/S0161171202207188. http://gdmltest.u-ga.fr/item/01883649/