Potpisnici, koji pripadaju Evropskoj narodnoj stranci/Evropskim demokratima (EPP/ED), su između ostalih Dimitar Abadzhiev, Maria Kapon i bivši gradonačelnik Sofije Stefan Sofianski.
The signatories, affiliated with the European People's Party/European Democrats (EPP/ED) group, included Dimitar Abadzhiev, Maria Kapon and former Sofia Mayor Stefan Sofianski.