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IEEE Transactions on Vehicular Technology > 2012 > 61 > 1 > 297 - 310
IEEE Transactions on Vehicular Technology > 2011 > 60 > 4 > 1849 - 1858
2011 IEEE Radio and Wireless Symposium > 154 - 157
IEEE Communications Surveys & Tutorials > 2011 > 13 > 2 > 258 - 273