Kristyan, Sandor. “Unified Formulae for Augmented Near Orthonormalized STO-KG (1s, …, 4f) Basis Sets via Atomic Orbital Energy Fit With Graphical Representations to Use in Molecular Structure Calculations”. European Journal of Chemistry, vol. 16, no. 4, Dec. 2025, pp. 382-94, doi:10.5155/eurjchem.16.4.382-394.2711.