@article{JRAM_1989__398_153141,
     author = {John C. Wood and Adel Bahy-El-Dien},
     title = {The explicit construction of all harmonic two-spheres in {G2} {(Rn).}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {36--66},
     publisher = {mathdoc},
     volume = {398},
     year = {1989},
     zbl = {0665.58009},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1989__398_153141/}
}