Search for: [References = "11. Marques da Costa E., Palma P., Rauhut D., Humer A., Constantin D., Velasco, X., 2012. Indicators of Services of General Interest in EU regional context\: between the need to measure and the lacking of their meaning. 52nd Annual Congress of the European Regional Science Association International, Regions in Motion, Bratislava, Slovak Republic, 21\-25 August 2012."]