Sharma, Y., Bishnoi, N., Surana, S., Bhutra, M., Tandon, S. y Tandon, K. 1. Fluorescence studies of Pr3 +, Sm3+, and Ho3 +, amino acid ternary complexes in aqueous solution. Rev. Téc. Fac. Ing. Univ. Zulia. 16, 1 (1).