@article{1214441656,
author = {Wolfson, Jon G.},
title = {Harmonic sequences and harmonic maps of surfaces into complex Grassmann manifolds},
journal = {J. Differential Geom.},
volume = {27},
number = {1},
year = {1988},
pages = { 161-178},
language = {en},
url = {http://dml.mathdoc.fr/item/1214441656}
}
Wolfson, Jon G. Harmonic sequences and harmonic maps of surfaces into complex Grassmann manifolds. J. Differential Geom., Tome 27 (1988) no. 1, pp. 161-178. http://gdmltest.u-ga.fr/item/1214441656/