NEW TETRANUCLEAR AND MONONUCLEAR OXALATO ORGANOTIN (IV) COMPLEXES WITH MONOCYCLOHEXYLAMMONIUM AS ADVERSE CATION: SYNTHESIS AND INFRARED STUDY. Journal of Engineering Studies and Research, [S. l.], v. 23, n. 4, p. 25–31, 2017. DOI: 10.29081/jesr.v23i4.71. Disponível em: https://jesr.ub.ro/journal/article/view/71. Acesso em: 13 sep. 2025.