2011s'

@proceedings{DBLP:conf/vtc/2011s,
  title     = {Proceedings of the 73rd IEEE Vehicular Technology Conference,
               VTC Spring 2011, 15-18 May 2011, Budapest, Hungary},
  booktitle = {VTC Spring},
  publisher = {IEEE},
  year      = {2011},
  isbn      = {978-1-4244-8331-0},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}