@article{COCV_2013__19_2_533_0,
     author = {Bonnard, Bernard and Caillau, Jean-Baptiste and Janin, Gabriel},
     title = {Conjugate-cut loci and injectivity domains on two-spheres of revolution},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {533--554},
     publisher = {EDP-Sciences},
     volume = {19},
     number = {2},
     year = {2013},
     doi = {10.1051/cocv/2012020},
     mrnumber = {3049722},
     zbl = {1267.53042},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv/2012020/}
}