S. Ezzat, N., A. Basheer, H. and S. Al-Ajely, M. (2005) “Synthesis of 1,2,4-Oxadiazolidine and Isoxazolidine Derivatives from Addition of Isocyanates and Alkenes to Nitrones”, Rafidain Journal of Science, 16(8), pp. 15–21. doi: 10.33899/rjs.2005.42279.