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IEEE Access > 2015 > 3 > 2794 - 2802
IEEE Journal on Selected Areas in Communications > 2011 > 29 > 1 > 83 - 93
IEEE Transactions on Vehicular Technology > 2011 > 60 > 8 > 3882 - 3896
IEEE Transactions on Vehicular Technology > 2010 > 59 > 2 > 734 - 741