@article{JRAM_1989__396_153126,
     author = {Jacques Gasqui and Hubert Goldschmidt},
     title = {Rigidit\'e infinit\'esimale des espaces projectifs et des quadriques complexes.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {87--121},
     publisher = {mathdoc},
     volume = {396},
     year = {1989},
     zbl = {0657.53029},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1989__396_153126/}
}