About the Authors

Tamara Ratkovic

Roles Conceptualization, Formal analysis, Investigation, Project administration, Resources, Supervision, Validation, Writing – review & editing

Affiliation Singidunum University, Faculty of Physical Education and Sports Management, Belgrade, Serbia

Ivan Paunovic

Roles Conceptualization, Data curation, Formal analysis, Writing – original draft, Writing – review & editing

ivan.paunovic@h-brs.de

Affiliations Bonn-Rhein-Sieg University of Applied Sciences, Campus Rheinbach, Centre for Entrepreneurship, Innovation and SMEs (CENTIM), Rheinbach, Germany, Singidunum University, Faculty of Health and Business Studies, Valjevo, Serbia

Helena Šlogar

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Writing – review & editing

Affiliation University of Rijeka, Faculty of Economics and Business, Rijeka, Croatia

Competing Interests

The authors have declared that no competing interests exist.