ABHISHEK, Sharma and RAJESH, Sankara Narayanan. Common fixed points in Chebyshev center for a semigroup of isometry mappings. Topological Methods in Nonlinear Analysis. Online. 31 March 2025. Vol. 65, no. 1, pp. 1 - 11. [Accessed 12 December 2025]. DOI 10.12775/TMNA.2024.035.