@phdthesis{dnb-3427,
  title = {Social search in collaborative tagging networks: the role of ties},
  author = {Kerstin Bischoff},
  year = {2013},
  url = {http://d-nb.info/1042927375},
  researchr = {https://researchr.org/publication/dnb-3427},
  cites = {0},
  citedby = {0},
  school = {University of Hanover},
}