Gu, Guoliang, and Ming Lu. “A New Facile Synthesis of Dimethyl 4-(2-(2,6-bis(methoxycarbonyl)pyridin-4-yl)vinyl) Pyridine-2,6-Dicarboxylate”. Macedonian Journal of Chemistry and Chemical Engineering 29, no. 2 (December 15, 2010): 165–168. Accessed April 29, 2024. https://mjcce.org.mk/index.php/MJCCE/article/view/163.