VEPKHVADZE, NINO, et al. “GENERAL CHARACTERIZATION OF THE ATMOSPHERIC AIR OF THE BIG CITIES OF GEORGIA, IN THE PRE-COVID, COVID AND POST-COVID PERIOD (2019-2023)”. Experimental and Clinical Medicine Georgia, no. 4, Nov. 2023, pp. 19-24, doi:10.52340/jecm.2023.04.04.