@article{JRAM_1995__458_153680,
     author = {Laurent Manivel},
     title = {Birational invariants of algebraic varieties.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {63--92},
     publisher = {mathdoc},
     volume = {458},
     year = {1995},
     zbl = {0811.14008},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1995__458_153680/}
}