Chochikyan, T. V., M. A. Samvelyan, V. S. Haroutyunyan, and A. A. Avetisyan. 2010. “SYNTHESIS OF NEW SPIROHETERYL-SUBSTITUTED BUTANOLIDES ”. Proceedings of the YSU B: Chemical and Biological Sciences 44 (2 (222):28-32. https://doi.org/10.46991/PYSU:B/2010.44.2.028.