Andrej Tušer. The European Character of the Slovak Regional and Local Press (Part Two). Human Affairs, 1998. Dostupné online [cit. 2021-01-30].
books.google.com
Georgios Terzis. European Media Governance: National and Regional Dimensions. [s.l.] : Intellect Books, 2007. Dostupné online.ISBN 978-1-84150-192-5. S. 425.