“Synthesis of Unnatural Diethyl 2-Hydroxysuccinate From 2,3-Dihydroxysuccinic Acid As a Starting Material for Annonine Building Blocks” (2018) Al-Nahrain Journal of Science, 21(4), pp. 30–37. Available at: https://anjs.edu.iq/index.php/anjs/article/view/1983 (Accessed: 3 May 2024).