1. Y. Alber, Metric and generalized projection operators in Banach spaces: Properties and applications. In: Theory and Applications of Nonlinear Operators of Accretive and Monotone Type, (A. G. Kartsatos, Ed.), Marcel Dekker, New York (1996), pp. 15–50.
2. Y. Alber and S. Guerre-Delabriere, On the projection methods for fixed point problems, Analysis (Munich), 21(1) (2001), 17–39.
3. Y. Alber and I. Ryazantseva, Nonlinear ill posed problems of monotone type, Springer, London, UK, 2006, J. Nonlinear Convex Anal., 15(5) (2014), 851–865.
4. H. Brézis and F. E. Browder, Some new results about Hammerstein equations, Bull. Amer. Math. Soc., 80 (1974), 567–572.
5. H. Brézis and F. E. Browder, Existence theorems for nonlinear integral equations of Hammerstein type, Bull. Amer. Math. Soc., 81 (1975), 73–78.