Wen, Yong-Hong, Shu-Sheng Zhang, Bao-Hui Yu, Qing Liu, and Xue-Mei Li. “Synthesis and Crystal Structure of 1,4-Di(1-Naphthyl)-2,5-Piperazinedione”. Asian Journal of Chemistry 18, no. 1 (March 30, 2010): 201–206. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/21280.