Izhyk, V. ., A. . Dobrydnev, M. . Popova, and Y. . Volovenko. “Synthesis of N-Methyl 3-Alkyl-Isothiazolidine- 1,1-Dioxo-3-Methylcarboxylates through the Intramolecular Michael Reaction”. Reports of the National Academy of Sciences of Ukraine, no. 6, Dec. 2022, pp. 73-78, doi:10.15407/dopovidi2022.06.073.