@incollection{AST_1985__127__275_0,
     author = {Szpiro, Lucien},
     title = {Un peu d'effectivit\'e},
     booktitle = {S\'eminaire sur les pinceaux arithm\'etiques : la conjecture de Mordell},
     series = {Ast\'erisque},
     pages = {275--287},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {127},
     year = {1985},
     mrnumber = {801928},
     zbl = {1182.11016},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1985__127__275_0/}
}