“Three Fisher-Rao Identities on the Binary Statistical Manifold: Jeffreys Uniqueness, the Gudermannian Bridge, and Isotropic Retention”. European Journal of Pure and Applied Mathematics 19, no. 2 (July 28, 2026): 7819. Accessed July 28, 2026. https://www.ejpam.com/ejpam/article/view/7819.