@article{JLT_2005_15_1_JLT_2005_15_1_a13,
     author = {H. Duan and X. Zhao },
     title = {The {Height} {Function} on the {2-Dimensional} {Cohomology} of a {Flag} {Manifold}},
     journal = {Journal of Lie theory},
     pages = {219--226},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {2005},
     url = {http://geodesic.mathdoc.fr/item/JLT_2005_15_1_JLT_2005_15_1_a13/}
}