Zhabin, A. P., E. V. Volkodavova, and E. G. Nesterenko. “The Problem of Formation of Long-Term Investment Resources Formation in the Modern Russian Economy”. International Journal of Economics and Financial Issues, vol. 6, no. 5S, Aug. 2016, pp. 166-71, https://www.econjournals.com/index.php/ijefi/article/view/2883.