@article{10_4064__27_1_175_181,
     author = {Fr\'ed\'eric H\'elein},
     title = {On weakly harmonic maps and {Noether} harmonic maps from a {Riemann} surface into a {Riemannian} manifold},
     journal = {Banach Center Publications},
     pages = {175--181},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {1992},
     doi = {10.4064/-27-1-175-181},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/-27-1-175-181/}
}