N.  Singh, Swapna, B., Balu, A. Mariana, Bhatte, K., and Sudarsanam, P., ?Additive-free, selective synthesis of N-heteroaromatics using morphology-engineered hollow CeO2 nanocatalyst?, ACS Sustainable Chemistry & Engineering, vol. 13, no. 49, pp. 21266-21276, 2025.