@article{10_4153_CMB_2010_097_7,
     author = {Cheung, Wai-Shun and Tam, Tin-Yau},
     title = {Star-Shapedness and {K-Orbits} in {Complex} {Semisimple} {Lie} {Algebras}},
     journal = {Canadian mathematical bulletin},
     pages = {44--55},
     year = {2011},
     volume = {54},
     number = {1},
     doi = {10.4153/CMB-2010-097-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2010-097-7/}
}