Annual report 2005 [documento eletrónico] / National Regulatory Authority for Communications
Annual report 2005 [documento eletrónico] / Czech Telecommunication Office
Annual report 2005 / Hellenic Telecommunications and Post Commission
European postal landscape 2015 / The Boston Consulting Group
Progress toward liberalization of the postal and delivery sector / ed. by Michael A. Crew and Paul K. Kleindorfer