@article{GDZPPN002214679,
title = {Monotone approximation of energy functionals for mappings into metric spaces, I.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {485},
year = {1997},
pages = {129-152},
zbl = {0879.58018},
url = {http://dml.mathdoc.fr/item/GDZPPN002214679}
}
Sturm, Karl-Theodor. Monotone approximation of energy functionals for mappings into metric spaces, I.. Journal für die reine und angewandte Mathematik, Tome 485 (1997) pp. 129-152. http://gdmltest.u-ga.fr/item/GDZPPN002214679/