@article{MAN_1992__294_4_165018,
     author = {Siu-Kei Tin},
     title = {Numerically positive polynomials for k-ample vector bundles.},
     journal = {Mathematische Annalen},
     pages = {579--590},
     publisher = {mathdoc},
     volume = {294},
     number = {4},
     year = {1992},
     zbl = {0757.14009},
     url = {http://geodesic.mathdoc.fr/item/MAN_1992__294_4_165018/}
}