@article{GDZPPN002204541,
title = {A variational problem for constant mean curvature surfaces with free boundary.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {374},
year = {1987},
pages = {97-107},
zbl = {0604.53003},
url = {http://dml.mathdoc.fr/item/GDZPPN002204541}
}
Athanassenas, Maria. A variational problem for constant mean curvature surfaces with free boundary.. Journal für die reine und angewandte Mathematik, Tome 374 (1987) pp. 97-107. http://gdmltest.u-ga.fr/item/GDZPPN002204541/