Milenkovic, M.; Ciric Lalic, D.; Vujicic, M.; Pesko, I.; Savkovic, M.; Gracanin, D. (2023). Project portfolio management in telecommunication company: A stage-gate approach for effective portfolio governance, Advances in Production Engineering & Management, Vol. 18, No. 3, 357-370, https://doi.org/10.14743/apem2023.3.478