@article{CMUC_2007__48_2_a12,
     author = {Alvoni, Elisabetta and Papini, Pier Luigi},
     title = {Quasi-concave copulas, asymmetry and transformations},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {311--319},
     publisher = {mathdoc},
     volume = {48},
     number = {2},
     year = {2007},
     mrnumber = {2338099},
     zbl = {1195.62074},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2007__48_2_a12/}
}