1. Barbu, V.: Nonlinear semigroups and differential equations in Banach spaces, Noordhoff, 1975.
2. Browder, F.E.: Nonlinear operators and nonlinear equations of evolution in Banach spaces, Vol. 18: 2 of Proc. Symp. Pure Math., Amer. Math. Soc., 1976.
3. Cloranescu, I.: Geometry of Banach spaces, duality mappings and nonlinear problems, Kluwer Acad. Publ., 1990.
4. Crandall, M.G., and Liggett, T.: ‘Generation of semigroups of nonlinear transformations in general Banach spaces’, Amer. J. Math. 93 (1971), 265–298.
5. Crandall, M.G., and Pazy, A.: ‘Nonlinear evolution equations in Banach spaces’, Israel J. Math. 11 (1972), 57–94.