@article{MAN_1991__289_4_164775,
     author = {Thomas Peternell and Fr\'ed\'eric Campana},
     title = {Projective manifolds whose tangent bundles are numerically effective.},
     journal = {Mathematische Annalen},
     pages = {169--188},
     publisher = {mathdoc},
     volume = {289},
     number = {4},
     year = {1991},
     zbl = {0729.14032},
     url = {http://geodesic.mathdoc.fr/item/MAN_1991__289_4_164775/}
}