Пшінько, О.М., Климова, Т.В. and Гродецька, С.М. 2015. Calculation of profitability and risk of a project portfolio based on the Sharpe model. Technology audit and production reserves. 3, 2(23) (May 2015), 45–50. DOI:https://doi.org/10.15587/2312-8372.2015.45023.