@article{MM2_1985__50_155061,
     author = {Thomas Peternell},
     title = {A {Rigidity} {Theorem} for {P3} ( {C} ).},
     journal = {Manuscripta mathematica},
     pages = {397--428},
     publisher = {mathdoc},
     volume = {50},
     year = {1985},
     zbl = {0573.32027},
     url = {http://geodesic.mathdoc.fr/item/MM2_1985__50_155061/}
}