1. Department of Industrial Economics Blekinge Institute of Technology Karlskrona Sweden
2. Academic and Research Institute of Business, Economics and Management Sumy State University Sumy Ukraine
3. Faculty of Economics and Management Czech University of Life Sciences Prague Prague Czech Republic
4. Department of Applied Social Sciences Silesian University of Technology Gliwice Poland
5. The London Academy of Science and Business London UK
6. Laboratory of Energy Systems Research Lithuanian Energy Institute Kaunas Lithuania