@article{10_4153_CMB_1983_080_3,
     author = {Broughton, S. Allen and Hoffman, Michael and Homer, William},
     title = {The {Height} of {Two-Dimensional} {Cohomology} {Classes} of {Complex} {Flag} {Manifolds}},
     journal = {Canadian mathematical bulletin},
     pages = {498--502},
     year = {1983},
     volume = {26},
     number = {4},
     doi = {10.4153/CMB-1983-080-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1983-080-3/}
}