@article{AFST_2001_6_10_3_405_0,
     author = {Bonnard, B. and Tr\'elat, E.},
     title = {On the role of abnormal minimizers in sub-riemannian geometry},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {405--491},
     publisher = {Universit\'e Paul Sabatier. Facult\'e des sciences},
     address = {Toulouse},
     volume = {Ser. 6, 10},
     number = {3},
     year = {2001},
     mrnumber = {1923686},
     zbl = {1017.53034},
     language = {en},
     url = {http://www.numdam.org/item/AFST_2001_6_10_3_405_0/}
}