Efthimiou, C. A., M. E. grypeos, C. G. Koutroulos, W. J. Oyewumi, and T. Petridou. “A Renormalized HVT Approach for a Class of Central Potential Wells”. HNPS Advances in Nuclear Physics, vol. 16, Jan. 2020, pp. 107-13, doi:10.12681/hnps.2587.