Bilyk, Tetiana, Nataliia Lukianenko, Karina Vityk, and Olesia Havryliuk. 2018. “APPLICATION OF PLANT ESSENTIAL OILS FOR IMPROVING AIR QUALITY IN THE LECTURE-HALLS OF UNIVERSITIES”. Proceedings of National Aviation University 75 (2):60-66. https://doi.org/10.18372/2306-1472.75.13119.