Karapetyan, Z., & Galstyan, A. (2013). NEW LACTON-HETEROCYCLES SYNTHESIS ON BASE OF 2-(2-ETHOXY-3-BROMOPROPYL)-2-ETHOXYCARBONYL-4-BUTANOLIDE. Proceedings of the YSU B: Chemical and Biological Sciences, 47(2 (231), 3–5. https://doi.org/10.46991/PYSU:B/2013.47.2.003