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Kapitalbevegelser, valutasalg og pengemengde
Hoff, Per-Trygve, (1982)
The concession process and foreign capital in Norway
Kresl, Peter Karl, (1976)
Kapitalbevegelse og pengepolitisk "lekkasje"
Ytterhus, Bjarne, (1982)
Competition and ownership in land passenger transport: The 7th International Conference
Hensher, David A., (2002)