Asatryan, Ruben. “OPTICAL-ELECTRONIC METHOD FOR AEROSOL PARTICLES MEASUREMENT IN ENVIRONMENT”. International Journal of Research -GRANTHAALAYAH 4, no. 4 (April 30, 2016): 27–30. Accessed July 23, 2024. https://granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG16_B04_42.