@article{CMH_1975__50_139623,
     author = {Brian Smyth and Tadashi Nagano},
     title = {Minimal {Varieties} and {Harmonic} {Maps} in {Tori.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {249--266},
     publisher = {mathdoc},
     volume = {50},
     year = {1975},
     zbl = {0326.53055},
     url = {http://geodesic.mathdoc.fr/item/CMH_1975__50_139623/}
}