@article{RSM_2006__64_1_55895,
     author = {Poggiolini, L.},
     title = {On local state optimality of bang-bang extremal.},
     journal = {Rendiconti del seminario matematico},
     pages = {1--23},
     publisher = {mathdoc},
     volume = {64},
     number = {1},
     year = {2006},
     zbl = {1169.49019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RSM_2006__64_1_55895/}
}