Platis, C., O. Kopsidas, M. V. Kokiousi, and A. E. Raptis. “Public Space As a Necessity for a Flexible and Effective Strategic Public Management: The Opportunity of Independent Agencies”. SPOUDAI Journal of Economics and Business, vol. 70, no. 1-2, Apr. 2020, pp. 93-105, http://spoudai.org/index.php/journal/article/view/107.