Structural Aspects of Mixed Ligand Complexes of Ni(II) Metal Chelates of Organic Acids with Propylenediamine. Journal of International Academy of Physical Sciences, [S. l.], v. 22, n. 3, p. 255–262, 2018. Disponível em: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/210. Acesso em: 23 oct. 2026.