Кононенко, Игорь Владимирович, and К.С. Букреева. “Model and Optimization Method of Projects Portfolios of the Enterprise for the Planning Period”. Eastern-European Journal of Enterprise Technologies 1, no. 2(43) (March 18, 2012): 9–11. Accessed August 17, 2024. https://journals.uran.ua/eejet/article/view/2495.