@article{GDZPPN002327856,
title = {A Twistor Description of Harmonic Maps of a 2-Sphere into a Grassmannian.},
journal = {Mathematische Annalen},
volume = {275},
year = {1986},
pages = {61-74},
zbl = {0575.58018},
url = {http://dml.mathdoc.fr/item/GDZPPN002327856}
}
Burstall, F. E. A Twistor Description of Harmonic Maps of a 2-Sphere into a Grassmannian.. Mathematische Annalen, Tome 275 (1986) pp. 61-74. http://gdmltest.u-ga.fr/item/GDZPPN002327856/