Sepstrup, P. 1992. Porter: "Beyond the Berner Convention: Copyright, Broadcasting and the Single European Market" / Tunsall and Palmer: Media Moguls / Østergaard (red.): The Media in Western Europe / Siune and Treutzschler (red.): Dynamics of Media Politics. MedieKultur: Journal of media and communication research. 8, 19 (Aug. 1992), 3 pages. DOI:https://doi.org/10.7146/mediekultur.v8i19.957.