@incollection{AST_1980__75-76__11_0,
     author = {Bacciotti, Andrea},
     title = {Caract\'erisation g\'eom\'etrique de processus optimaux avec contr\^ole initial},
     booktitle = {Analyse des syst\`emes},
     series = {Ast\'erisque},
     pages = {11--18},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {75-76},
     year = {1980},
     mrnumber = {581699},
     zbl = {0458.49015},
     language = {fr},
     url = {http://www.numdam.org/item/AST_1980__75-76__11_0/}
}