Tokmajyan, G.G., et al. “SYNTHESIS OF ANILINE, MORPHOLINE, PIPERIDINE AND PYRIDINIUM SALTS OF 2,3,4,5-TETRAHYDRO- AND 2,5-DIHYDRO- 4,5,5-TRIMETHYL-2-OXOFURAN-3-CARBONIC ACIDS AND STUDY OF THEIR ANTIMICROBIAL ACTIVITY”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 45, no. 1 (224), Feb. 2011, pp. 35-38, doi:10.46991/PYSU:B/2011.45.1.035.