1. Professor and Head of International Doctoral Study in Project Management, Alma Mater Europea ECM, Slovenska ulica 17, Maribor 2000, Slovenia.ORCID: .
2. Head of Management System Development Unit, Sector for EU Co-financed Projects, Hrvatske vode (Croatian Waters), Ulica grada Vukovara 220, Zagreb 10000, Croatia (corresponding author).
3. Assistant Professor of Project Management, Dept. of Infrastructure Design and Management, Faculty of Civil Engineering and Geosciences, Delft Univ. of Technology, Stevinweg 1, Delft CN 2628, Netherlands.