Science and technology for Europe / Commission of the European Communities
EN 60081 : tubular fluorescent lamps for general lighting service: (IEC 81 (1984) edition + amdt 1 (1987) + amdt 2 (1988) / European Commitee for electrothecnical Standardization
Manual de antenas receptoras para TV e FM / Francisco Ruiz Vassallo; trad. Manuel Ruas
Data transmission / Dogan A. Tugal, Osman Tugal