@article{JCA_2001_8_1_JCA_2001_8_1_a9,
     author = {M. Atteia and M. Ra{\"\i}ssouli},
     title = {Self {Dual} {Operators} on {Convex} {Functionals;} {Geometric} {Mean} and {Square} {Root} of {Convex} {Functionals}},
     journal = {Journal of convex analysis},
     pages = {223--24},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {2001},
     url = {http://geodesic.mathdoc.fr/item/JCA_2001_8_1_JCA_2001_8_1_a9/}
}