@article{JCA_2009_16_2_JCA_2009_16_2_a11,
     author = {P. Kot},
     title = {Peak {Set} {Crossing} all the {Circles}},
     journal = {Journal of convex analysis},
     pages = {515--521},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2009},
     url = {http://geodesic.mathdoc.fr/item/JCA_2009_16_2_JCA_2009_16_2_a11/}
}