VISWANATHAN, M.; KRISHNAN, G. Synthesis and Characterization of Mixed Ligand Complexes of Praseodymium(III), Neodymium(III), Samarium(III), Gadolinium(III) and Dysprosium(III) with Piperidinobenzylurea. Asian Journal of Chemistry, [S. l.], v. 16, n. 1, p. 156–162, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/19556. Acesso em: 22 jul. 2024.