@article{MZ_1994__215_1_174625,
     author = {Mikio Furuta and M.A. Guest and M. Kotani},
     title = {On the fundamental group of the space of harmonic 2-spheres in the n-sphere.},
     journal = {Mathematische Zeitschrift},
     pages = {503--518},
     publisher = {mathdoc},
     volume = {215},
     number = {1},
     year = {1994},
     zbl = {0813.58007},
     url = {http://geodesic.mathdoc.fr/item/MZ_1994__215_1_174625/}
}