@article{DBLP:journals/corr/abs-1103-3216,
  author    = {Lutz Bornmann and
               Loet Leydesdorff},
  title     = {Which cities produce excellent papers worldwide more than
               can be expected? A new mapping approach--using Google Maps--based
               on statistical significance testing},
  journal   = {CoRR},
  volume    = {abs/1103.3216},
  year      = {2011},
  ee        = {http://arxiv.org/abs/1103.3216},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}