Nikolaev, Michael, and Denis Malyshev. “The Role of Clusters in the Economic Development of the North-West Regions of Russia”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (August 9, 2015): 37–41. Accessed May 7, 2024. https://journals.rta.lv/index.php/ETR/article/view/877.