1. Cabada A, Infante G, Tojo FAF: Nontrivial solutions of Hammerstein integral equations with reflections. Bound. Value Probl. 2013., 2013: Article ID 86 10.1186/1687-2770-2013-86
2. Agarwal RP, O’Regan D, Wong PJY: Existence results of Brezis-Browder type for systems of Fredholm integral inclusions. Adv. Differ. Equ. 2011., 2011: Article ID 43 10.1186/1687-1847-2011-43
3. Petruşel A: Integral inclusions. Fixed point approaches. Comment. Math. Prace Mat. 2000, 40: 147–158.
4. Sîntămărian A: Integral inclusions of Fredholm type relative to multivalued φ -contractions. Seminar on Fixed Point Theory Cluj-Napoca 2002, 361–368.
5. Nadler SB: Multivalued contraction mappings. Pac. J. Math. 1969, 30: 475–488. 10.2140/pjm.1969.30.475