Afanasev, A. A., Kasyanov, V. F., Lukmanova, I. G., & Silka, D. N. (2015). Synchronization of Processes Related to Economic Activity with Stages of Development of Spatially-Organized Systems. International Journal of Economics and Financial Issues, 5(3S), 121–124. Retrieved from https://www.econjournals.com/index.php/ijefi/article/view/1700