[1] H. AMANN: 
Hammersteinsche Gleichungen mit kompakten Kernen. Math. Ann. 186 (1970), 334-340. 
MR 0278138[2] H. AMANN: 
Existence theorems for equations of Hammerstein type. Applicable Analysis 2 (1973), 385-397. 
MR 0394339 | 
Zbl 0244.47047[3] H. BRÉZIS: 
Equations et inéquations non-linéaires dans les espaces vectoriels en dualité. Ann. de l'Institut Fourier (Grenoble) 18 (1968), 115-175. 
MR 0270222[4] F. E. BROWDER: 
Nonlinear Functional Analysis and Nonlinear Integral Equations of Hammerstein and Urysohn type. Contributions to Nonlinear Functional Analysis Pub. No 27 of MRC. Univ. of Wisconsin (1971), 425-501. 
MR 0394340 | 
Zbl 0267.47038[5] F. E. BROWDER C. P. GUPTA: 
Monotone operators and nonlinear integral equations of Hammerstein type. Bull. Amer. Math. Soc. 75 (1968), 1347-1353. 
MR 0250141[6] D. G.de FIGUEIREDO C. P. GUPTA: 
Nonlinear integral equations of Hammerstein type involving unbounded monotone linear mappings. Journ. Math. Anal. Appl. 39 (1972), 37-48. 
MR 0305167[7] P. HESS: 
On nonlinear equations of Hammerstein type in Banach spaces. Proc. Amer. Math. Soc. 30 (1971), 308-312. 
MR 0282268 | 
Zbl 0229.47041[8] M. JOSHI: 
Existence Theorem for a Generalized Hammerstein type equation. Comment. Math. Univ. Carolinae 15 (1974), 283-291. 
MR 0348569 | 
Zbl 0291.47034[9] J. LERAY J. SCHAUDER: 
Topologie et equations fonctionnelles. Ann. Sci. Norm. Sup. 51 (1934), 45-78. 
MR 1509338