E. A. Orlova, “Cluster Approach in the Analysis of the Socio-Economic Situation of St. Petersburg”., Novelty. Experiment. Traditions, vol. 12, no. velty, pp. 31–42, Jan. 2026, Accessed: Nov. 07, 2026. [Online]. Available: https://ojs.owebs.ru/nxtjournal/article/view/27244