Heavy-ion fusion reactions at extreme sub-barrier energiesC. L. Jiang, B. B. Back, K. E. Rehm, K. Hagino, G. Montagnoli and A. M. StefaniniEur. Phys. J. A, 57 7 (2021) 235DOI: https://doi.org/10.1140/epja/s10050-021-00536-2