Beck'scher IuKDG-Kommentar
by Stefan Engel-Flechsig, Frithjof A. Maennel, Alexander Tettenborn, Rolf Bender, Wendelin Bieser, Jutta Figge, Thomas Hoeren, Hannes Krämer, Barbara Leier
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Computer networksLaw and legislationTelecommunicationOnline information servicesTelemarketing