@article{MAN_1970__185_161945,
     author = {R.T. ROCKAFELLAR},
     title = {On the {Virtual} {Convexity} of the {Domain} and {Range} of a {Nonlinear} {Maximal} {Monotone} {Operator.}},
     journal = {Mathematische Annalen},
     pages = {81--90},
     publisher = {mathdoc},
     volume = {185},
     year = {1970},
     zbl = {0181.42202},
     url = {http://geodesic.mathdoc.fr/item/MAN_1970__185_161945/}
}