@article{TSG_1990-1991__9__141_0,
     author = {Gasqui, Jacques},
     title = {Rigidit\'e infinit\'esimale et g\'eom\'etrie de la quadrique complexe de dimension 4},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {141--152},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {9},
     year = {1990-1991},
     mrnumber = {1715937},
     zbl = {0739.53042},
     language = {fr},
     url = {http://www.numdam.org/item/TSG_1990-1991__9__141_0/}
}