Tsarukyan S, Arakelyan A. Modeling Time Series of International Prices for Natural Gas. Bull. YSU G: Econ. [Internet]. 2018 Mar. 22 [cited 2024 May 19];9(1(25):66-75. Available from: https://journals.ysu.am/index.php/bulletin-ysu-economics/article/view/vol_9_no_1_2018_pp066-075