Avetisyan, K. S. “SYNTHESIS OF FUNCTIONAL SUBSTITUTED PYRROLIDONES-2”. Proceedings of the YSU B: Chemical and Biological Sciences 39, no. 1 (206) (February 28, 2005): 143–145. Accessed November 22, 2024. https://journals.ysu.am/index.php/proceedings-chem-biol/article/view/vol39_no1_2005_pp143-145.