Sobha, T.D., L. Jirovetz, and P.M. Shafi. 2010. “Synthesis of Acylamino Acid Amides and Acylamino Acids by the Simultaneous Reduction and Hydrolysis of Imidazolines ”. Asian Journal of Chemistry 10 (4):1059-60. https://asianpubs.org/index.php/ajchem/article/view/23790.