TH. ALI AL-OBAIDY, O. Cyclization of Semicarbazones to 1,2,3-Selenadiazoles By Selenium Dioxide. Journal of Education and Science, [S. l.], v. 25, n. 2, p. 21–25, 2012. DOI: 10.33899/edusj.2012.59162. Disponível em: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42005. Acesso em: 10 sep. 2025.