@article{SIGMA_2007_3_a126,
     author = {Shihshu Walter Wei},
     title = {On {1-Harmonic} {Functions}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2007},
     volume = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a126/}
}