Li, Jian, and Zu-Pei Liang. “Synthesis and Structural Characterization of N-Propyl-7-Oxa-bicyclo[2,2,1]hept-5-Ene-2,3-Dicarboximide”. Asian Journal of Chemistry 25, no. 2 (September 7, 2012): 660–662. Accessed July 22, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_2_15.