@article{TRSPY_2002_236_a41,
     author = {U. Boscain},
     title = {Projection {Singularities} of {Extremals} and {Morse} {Property} for {Minimum} {Time}},
     journal = {Informatics and Automation},
     pages = {399--407},
     publisher = {mathdoc},
     volume = {236},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2002_236_a41/}
}