Helberger, N. (2005). Controlling access to content: Regulating conditional access in digital broadcasting. Kluwer law international.
Chicago ZitierstilHelberger, Natali. Controlling Access to Content: Regulating Conditional Access in Digital Broadcasting. Netherlands: Kluwer law international, 2005.
MLA ZitierstilHelberger, Natali. Controlling Access to Content: Regulating Conditional Access in Digital Broadcasting. Kluwer law international, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.