Yepremyan, M.V. “FORECAST OF LOW CLOUD COVER IN THE ARЕА OF «EREBUNI» AIRPORT IN YEREVAN CITY”. Proceedings of the YSU C: Geological and Geographical Sciences, vol. 47, no. 3 (232), Dec. 2013, pp. 25-30, doi:10.46991/PYSU:C/2013.47.3.025.