M. El-Hadidy, M. M. El-Sharkasy, and M. Fakharany, “Detection of a Randomly Hidden Target in Constrained Domains: A Model with Discounted Effort-Driven Incentives: Detection of a Randomly Hidden Target in Constrained Domains”, Comm. Math. Appl., vol. 17, no. 1, May 2026, doi: 10.26713/cma.v17i1.3438.