1. Fixed point theorems for set-valued mappings of contractive type;Assad;Pacific J. Math.,1972
2. Approximation of fixed points of some nonself generalized φ-contractions;Berinde;Math. Balk.,2004
3. A generalization of Bahach’s contraction principle;Ćirić;Proc. Am. Math. Soc.,1974
4. Quasi contraction nonself mapping on Banach spaces;Ćirić;Bull. Acad. Serbe Sci. Arts, Cl. Sci. Math. Natur. Sci. Math.,1998
5. On some non-self mappings;Ćirić;Math. Nach.,2003