@article{COCV_2007__13_2_207_0,
     author = {Bonnard, Bernard and Caillau, Jean-Baptiste and Tr\'elat, Emmanuel},
     title = {Second order optimality conditions in the smooth case and applications in optimal control},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {207--236},
     publisher = {EDP-Sciences},
     volume = {13},
     number = {2},
     year = {2007},
     doi = {10.1051/cocv:2007012},
     mrnumber = {2306634},
     zbl = {1123.49014},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv:2007012/}
}