@incollection{AST_1980__75-76__219_0,
     author = {Sussmann, Hector J.},
     title = {Les semi-groupes sous-analytiques et la r\'egularit\'e des commandes en boucle ferm\'ee},
     booktitle = {Analyse des syst\`emes},
     series = {Ast\'erisque},
     pages = {219--226},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {75-76},
     year = {1980},
     mrnumber = {581717},
     zbl = {0459.93036},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1980__75-76__219_0/}
}