00350 a2200085 4500082001400000245019400014260000900208300002600217650002100243 a338.9 HEl aA Model for Calculating Interconnection Costs in Telecommunications : Helping to Eliminate and Achieve Sustainable Development through Public Private Partnerships in Infrastructure /cPPIAF c2006 a58p. ;bill. ;c30 cm aEconomics Crisis