@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}, author = {Collectif}, series = {Ast\'erisque}, publisher = {Soci\'et\'e math\'ematique de France}, number = {75-76}, year = {1980}, zbl = {0458.49015}, mrnumber = {581699}, language = {fr}, url = {http://archive.numdam.org/item/AST_1980__75-76__11_0/} }