1. ITU Telecommunications Indicators Update-2009. Available at: http://www.itu.int/ITU-D/ict/statistics/
2. Cisco “Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2011-2016,” Technical Report, Cisco systems Inc., San Jose, CA, White Paper, February 2012
3. L. Lindbom R. Love S. Krishnamurthy C. Yao N. Miki V. Chandrasekhar “Enhanced inter-cell interference coordination for heterogeneous networks in LTE-Advanced: A survey”. Available at: http://arxiv.org/ftp/arxiv/papers/1112/1112.1344.pdf
4. “More Than 50 Billion Connected Devices”, Ericsson White Paper, February 2011