Claveria, Oscar, Enric Monte, and Salvador Torra. “A Genetic Programming Approach for Estimating Economic Sentiment in the Baltic Countries and the European Union”. Technological and Economic Development of Economy 27, no. 1 (January 18, 2021): 262-279. Accessed November 15, 2024. https://jest.vgtu.lt/index.php/TEDE/article/view/13989.