Book{nokey,
	title = {Controlling Access to Content: Regulating Conditional Access in Digital Broadcasting},
	author = {Helberger, N.},
	url = {https://pure.uva.nl/ws/files/3783809/38010_Thesis.pdf},
	year = {2005},
	date = {2005-06-30},
	keywords = {Kluwer Information Law Series},
}