The OECD report on regulatory reform / Organisation for Economic co-Operation and Development
Portuguese Telecoms 2000 Conference documentation : 25th & 26th October 2000, Lisbon / Org. SMi - Linking Business with Information
Anuário comunicação : os media e os novos media em Portugal / Obercom Observatório da Comunicação
An efficient and accurate method for calculating and representing power density in the near-zone of microwave antennas : NBSIR report No. 85-3036 / Richard L. Lewis and Allen C. Newell