@article{MZ_1971__123_171619,
     author = {Charles R. DePrima and W.V. Petryshyn},
     title = {Remarks on {Strict} {Monotonicity} and {Surjectivity} {Properties} of {Duality} {Mappings} {Definied} on {Real} {Normed} {Linear} {Spaces.}},
     journal = {Mathematische Zeitschrift},
     pages = {49--55},
     publisher = {mathdoc},
     volume = {123},
     year = {1971},
     zbl = {0214.37404},
     url = {http://geodesic.mathdoc.fr/item/MZ_1971__123_171619/}
}