2Robert G. Picard. The Ravens of Odin: the press in the Nordic nations (Iowa; 1988), 7.
3Sienna H6yer. "The Political Economy of the Norwegian Press", Scandinavian Political Studies 3(1968): 86.
4Henrik G. Bastiansen, "Rethinking Mass Communications in Norway", Nordicom Review 35(2014)2: 45.
5Jonas Harvard. "Connecting the Nordic Region: The Electric Telegraph and the European News Market", Communicating the North (edited by Jonas Harvard and Peter Stadius), 50.
6Henrik G. Bastiansen. "Rethinking Mass Communications in Norway", Nordicom Review 35(2014)2: 46.