@incollection{AST_1985__126__123_0,
     author = {Beauville, Arnaud},
     title = {Surjectivit\'e de l'application des p\'eriodes},
     booktitle = {G\'eom\'etrie des surfaces $K3$ : modules et p\'eriodes - S\'eminaire Palaiseau},
     series = {Ast\'erisque},
     pages = {123--128},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {126},
     year = {1985},
     mrnumber = {785228},
     zbl = {0583.32058},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1985__126__123_0/}
}