“Calculation of Shifting in Energy Levels for Ln3+ (Pr3+, Nd3+) Complex’s with Hetero cyclic Ligands in Solution state by using Optical Absorption Spectra”, NextGen Chem. Discov., vol. 2, no. 3, pp. 15–22, Aug. 2026, Accessed: Oct. 25, 2026. [Online]. Available: https://novalexpress.com/NGCD/index.php/ngcd/article/view/41