The theory of public utility pricing / Stephen J. Brown, David S. Sibley
Telegeography 1999
Electronic commerce : the strategic perspective / Richard T. Watson...[et. al]
Wi-Fi billing, customer care and business models will play a pivotal role in revenue generation [documento electrónico] / Paul Hughes and Roberta Wiggins
Handset subsidies - an empirical investigation / Pedro Pita Barros
Construction price indices : sources and methods / Organisation for Economic co-Operation and Development
Actual consumer practices and operators' offers for intra-EU calls [documento eletrónico] / European Commission