REICH, Simeon and ZASLAVSKI, Alexander J. A fixed point theorem for nonself nonlinear contractions in length spaces. Topological Methods in Nonlinear Analysis. Online. 3 March 2024. Vol. 63, no. 1, pp. 13 - 22. [Accessed 4 July 2024]. DOI 10.12775/TMNA.2023.007.