Tandon, S., N. Bishnoi, and S. Surana. “Spectroscopic Studies of Nd3+ Ternary Amino Acid Complexes”. Rev. Téc. Fac. Ing. Univ. Zulia, Vol. 14, no. 2, 1, https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/5385.