Gaber, Hatem Moustafa, and Tarek Abdel-Mawgoud Moussa. “Regioselective Synthesis and Antimicrobial Studies of Novel Bridgehead Nitrogen Heterocycles Containing the Thienopyrimidinone Skeleton”. European Journal of Chemistry 2, no. 2 (June 30, 2011): 251–259. Accessed April 29, 2024. https://www.eurjchem.com/index.php/eurjchem/article/view/380.