Study of R -molar ratio effect on the transformation of tetraethylorthosilicat precursor to gels in sol-gel technique. Baghdad Science Journal, Iraq, Baghdad, v. 6, n. 3, p. 590–595, 2009. DOI: 10.21123/bsj.2009.6.3.590-595. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1020.. Acesso em: 19 may. 2024.