@article{GDZPPN002209764,
title = {Existence, uniqueness, and regularity for functions of least gradient.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {426},
year = {1992},
pages = {35-60},
zbl = {0756.49021},
url = {http://dml.mathdoc.fr/item/GDZPPN002209764}
}
Sternberg, P.; Williams, G.; Ziemer, W. Existence, uniqueness, and regularity for functions of least gradient.. Journal für die reine und angewandte Mathematik, Tome 426 (1992) pp. 35-60. http://gdmltest.u-ga.fr/item/GDZPPN002209764/