P. M. Muneppa and H. G. Nagaraja, “Rigidity of Yamabe solitons on \(N(k)\)-contact metric manifolds”, Int. J. Maps Math., vol. 9, no. 2, pp. 460–466, Sep. 2026, Accessed: Oct. 03, 2026. Available: https://simadp.com/journalmim/article/view/549