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The development of the shadow economies for Denmark, Norway, and Sweden : a comparison
Schneider, Friedrich, (1986)
En sammenligning af udviklingen i den sorte okonomi for Danmark, Norge og Sverige
Lundager, Jens, (1986)
The underground economies : tax evasion and information distortion
Feige, Edgar L., (1989)
Hiding in the Shadows : The Growth of the Underground Economy
Schneider, Friedrich, (2003)