@article{JCA_2005_12_2_JCA_2005_12_2_a12,
     author = {J.-P. Crouzeix and T. Rapcs\'ak},
     title = {Integrability of {Pseudomonotone} {Differentiable} {Maps} and the {Revealed} {Preference} {Problem}},
     journal = {Journal of convex analysis},
     pages = {431--446},
     publisher = {mathdoc},
     volume = {12},
     number = {2},
     year = {2005},
     url = {http://geodesic.mathdoc.fr/item/JCA_2005_12_2_JCA_2005_12_2_a12/}
}