1. Browder, F.E., Petryshyn, W.V.: Construction of fixed points of nonlinear mappings in Hilbert spaces. J. Math. Anal. Appl. 73, 875–881 (1967)
2. Brezis, H.: Opérateurs Maximaux Monotones et Semi-groupes de Contractions Dans Les Espaces de Hilbert. American Elsevier Publishing, New York (1973)
3. Zeidler, E.: Nonlinear Functional Analysis and Applications. II/B. Nonlinear Monotone Operators. Springer, New York (1990)
4. Cioranescu, I.: Geometry of Banach Spaces, Duality Mappings and Nonlinear Problems. Kluwer Academic, Dordrecht (1990)
5. Da Cruz Neto, J.X., Ferreira, O.P., Lucambio Pérez, L.R.: Monotone point-to-set vector fields. Balk. J. Geom. Appl. 5, 69–79 (2000)