@article{JCA_2001_8_2_JCA_2001_8_2_a0,
     author = {A. Neumann},
     title = {Invariant {Convex} {Sets} in {Operator} {Lie} {Algebras}},
     journal = {Journal of convex analysis},
     pages = {291--326},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {2001},
     url = {http://geodesic.mathdoc.fr/item/JCA_2001_8_2_JCA_2001_8_2_a0/}
}