@article{01509508,
title = {A Weierstrass-type representation for harmonic maps from Riemann surfaces to general Lie groups.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {5},
year = {2000},
pages = {7-37},
zbl = {0958.58012},
language = {en},
url = {http://dml.mathdoc.fr/item/01509508}
}
Balan, Vladimir; Dorfmeister, Josef. A Weierstrass-type representation for harmonic maps from Riemann surfaces to general Lie groups.. Balkan Journal of Geometry and its Applications (BJGA), Tome 5 (2000) pp. 7-37. http://gdmltest.u-ga.fr/item/01509508/