@article{02151033,
title = {The height function on the 2-dimensional cohomology of a flag manifold.},
journal = {Journal of Lie Theory},
volume = {15},
year = {2005},
pages = {219-226},
zbl = {1074.53043},
language = {en},
url = {http://dml.mathdoc.fr/item/02151033}
}
Duan, Haibao; Zhao, Xuan. The height function on the 2-dimensional cohomology of a flag manifold.. Journal of Lie Theory, Tome 15 (2005) pp. 219-226. http://gdmltest.u-ga.fr/item/02151033/