Valkov, I. (2021). Methodologies for Measuring Media Freedom. The Bulgarian Case (Comparative Analysis of the Methodologies Used by Freedom House, Reporters Without Borders, CMPF, IREX, and AEJ-Bulgaria). UNWE Yearbook, 1, 139-165. https://bjiep.e-dnrs.org/index.php/yb/article/view/5949