@incollection{AST_1973__10__1_0,
     author = {Escassut, Alain},
     title = {Prolongement analytique et alg\`ebres de {Banach} ultram\'etriques},
     booktitle = {Prolongement analytique et alg\`ebres de Banach ultram\'etriques},
     series = {Ast\'erisque},
     pages = {1--107},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {10},
     year = {1973},
     mrnumber = {364676},
     zbl = {0289.12109},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1973__10__1_0/}
}