International Visegrad Fund, whose mission is to advance ideas for sustainable regional cooperation in Central Europe. In this respect, all the members of the research team would like to express their gratitude and thanks to the support provided and, at the same, declare their hope that the results of this project fulfil the mission of the Visegrad Fund. The authors of the monograph would like to thank the project manager, Mr. Dániel Péter. Dear Dániel, we thank you for your fast responses and willingness to help us. We have appreciated it very much.