Stefan Lindow. Internet Policy and German Copyright Regulation. A Subsystem Perspective to Assess Changes in Interest Group Dynamics and Policy-Making

in Managing Democracy in the Digital Age pp 53-74

The chapter cites: Horten M (2012) The copyright enforcement enigma: Internet politics and the “Telecoms package”. Palgrave Macmillan, New York.

Unforunately, it is behind a paywall, so I cannot provide any more details of the citation.