Stankevich, Ivan, Ivan Kopytin, and Nikolay Pilnik. “Nowcasting GDP of Major Economies During the Crisis: Does Energy Matter?”. Advances in Systems Science and Applications 23, no. 1 (April 16, 2023): 91-98. Accessed April 25, 2024. https://ijassa.ipu.ru/index.php/ijassa/article/view/1116.