IEC 61131-2 [documento eletrónico] : programmable controllers; : part 2; : equipment requirements and tests / International Electrotechnical Commission
Telecom operators : caution - work ahead / Arthur D. Little, Exane BNP Paribas
Worldwide converged mobile device 2007-2011 forecast update [documento electrónico] / Shiv K. Bakhshi, Chris Hazelton and Ramon T. Llamas