CohenCD11'

@article{DBLP:journals/pvldb/CohenCD11,
  author    = {Edith Cohen and
               Graham Cormode and
               Nick G. Duffield},
  title     = {Structure-Aware Sampling: Flexible and Accurate Summarization},
  journal   = {PVLDB},
  volume    = {4},
  number    = {11},
  year      = {2011},
  pages     = {819-830},
  ee        = {http://www.vldb.org/pvldb/vol4/p819-cohen.pdf},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}