2012. SOME CHEMICAL TRANSFORMATIONS OF 3-FUNCTIONALLY-4,5-DIPHENYL-$\Delta^3$-BUTENOLIDЕS. Proceedings of the YSU B: Chemical and Biological Sciences. 46, 2 (228) (May 2012), 14–18. DOI:https://doi.org/10.46991/PYSUB.2012.46.2.014.