Montazeri, N. (2010) “Sulfuric Acid Impregnated on Silica Gel (H2SO4/SiO2): A Versatile and Reusable Catalyst for the Synthesis of 1,2,4-Triazolo[5,1-b][1,3]thiazin-7-ones”, Asian Journal of Chemistry, 22(9), pp. 7432–7434. Available at: https://asianpubs.org/index.php/ajchem/article/view/12001 (Accessed: 4 July 2024).