@article{AFST_1980_5_2_1_67_0,
     author = {Lions, Pierre-Louis},
     title = {Un probl\`eme de contr\^ole g\'eom\'etrique et les \'equations de {Hamilton-Jacobi-Bellman}},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {67--78},
     publisher = {Universit\'e Paul Sabatier},
     address = {Toulouse},
     volume = {5e s{\'e}rie, 2},
     number = {1},
     year = {1980},
     mrnumber = {583904},
     zbl = {0461.49016},
     language = {fr},
     url = {http://www.numdam.org/item/AFST_1980_5_2_1_67_0/}
}