@article{JCA_2010_17_1_JCA_2010_17_1_a7,
     author = {P. Bich},
     title = {On the {Continuous} {Representation} of {Quasiconcave} {Functions} by {Their} {Upper} {Level} {Sets}},
     journal = {Journal of convex analysis},
     pages = {95--101},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2010},
     url = {http://geodesic.mathdoc.fr/item/JCA_2010_17_1_JCA_2010_17_1_a7/}
}