ETSI TR 102 260 [documento electrónico] : technical report: electromagnetic compatibility and radio spectrum matters (ERM); code division multiple access public access mobile radio (CDMA-PAMR); system reference document / European Telecommunications Standards Institute
Performance data measurements : recommendation GSM 12.04: release note: version 3.2.0 / European Telecommunications Standards Institute
The economist / The Economist Newspaper
Confidencial imobiliário : newsletter imobiliária portuguesa / prop. Imoestatística - Sistemas de Informação de Imobiliário, Lda.; dir. Ricardo Guimarães