1. Un espace métrique linéaire qui n'est pas un rétracte absolu;Cauty;Fund. Math.,1994
2. Fixed Point Theory;Dugundji,1982
3. Fixed point theorems for multivalued transformations;Eilenberg;Amer. J. Math.,1946
4. On the Leray–Schauder alternative;Granas;Topological Methods Nonlinear Anal.,1993
5. Fixed Point Theory in Topological Vector Spaces;Hadžić,1984