1. Arino O., Gautier S., Penot J.P.: A fixed point theorem for sequentially continuous mapping with application to ordinary differential equations. Functional. Ekvac. 27(3), 273–279 (1984)
2. Averna, D., Marano, S.A.: Existence of solutions for operator inclusions: a unified approach. Rend. Sem. Mat. Univ. Padova 102, (1999)
3. Avramescu C.: A fixed point theorem for multivalued mappings. Electron. J. Qual. Theory Differ. Equ. 17, 1–10 (2004)
4. Barroso C.S.: Krasnoselskii’s fixed point theorem for weakly continuous maps. Nonlinear Anal. 55, 25–31 (2003)
5. Barroso C.S., Teixeira E.V.: A topological and geometric approach to fixed point results for sum of operators and applications. Nonlinear Anal. 60(4), 625–660 (2005)