Safiullin, Marat R., and Aliya A. Abdukaeva, Leonid A. Elshin. “Methodological Approaches to Structural-Logical Analysis of Interaction for Business Cycles”. Opción 34, no. 86-2 (December 19, 2019). Accessed January 26, 2026. https://produccioncientifica.luz.edu.ve/index.php/opcion/article/view/30385.