Nascimento, D. L., and A. L. A. Fonseca. 2022. “Finding the Ground State Energy for the Helium Atom in a 2D Configuration by Using the Solutions of a Four-Spinor Dirac-Like Equation”. New Frontiers in Physical Science Research Vol. 3, November, 61-80. https://doi.org/10.9734/bpi/nfpsr/v3/4304A.