Annual Report 2009 [documento eletrónico] : smart thinking smart living / ed. Ericsson
The international communications market report 2010 [documento electrónico] / Office of Communications
Lithuanian communications sector 2006 / Communications Regulatory Authority of the Republic of Lithuania
Annual report 2009 / Communications Regulatory Authority of the Lithuania
Relatório anual de acompanhamento dos mercados de comunicações electrónicas 2009 [documento electrónico] / Autoridade da Concorrência