@Article{YoungjooChung:2011,
  author = {Young joo Chung, Masashi Toyoda, and Masaru Kitsuregawa},
  title = {A Study of Link Farm Evolution Using a Time-series of Web Snapshots},
  booktitle = {IPSJ Transactions on Database },
  year      = {2011},
  pages     = {pp.158-171},
}