1. Department of Regional Development, Faculty of Social Sciences , University of Gdańsk , Gdańsk , Poland
2. Ukrainian Research Institute of Medical Rehabilitation and Resort Therapy of the Ministry of Health of Ukraine , Odessa , Ukraine
3. Institute of Civil Service and Administration , Odessa Polytechnic National University , Odessa , Ukraine
4. State Enterprise “NDIproektrekonstruktsiia”, Odessa Branch of Research Institute , Odessa , Ukraine