@article{GDZPPN00230421X,
title = {Minimal Surfaces and Surfaces of Prescribed Mean Curvature Spanned over Obstacles.},
journal = {Mathematische Annalen},
volume = {189},
year = {1970},
pages = {248-264},
zbl = {0198.14802},
url = {http://dml.mathdoc.fr/item/GDZPPN00230421X}
}
TOMI, F. Minimal Surfaces and Surfaces of Prescribed Mean Curvature Spanned over Obstacles.. Mathematische Annalen, Tome 189 (1970) pp. 248-264. http://gdmltest.u-ga.fr/item/GDZPPN00230421X/