@TECHREPORT{leifeld2010comparison,
  author = {Leifeld, Philip and Haunss, Sebastian},
  title = {{A Comparison between Political Claims Analysis and Discourse Network
    Analysis: The Case of Software Patents in the European Union}},
  institution = {Max Planck Institute for Research on Collective Goods},
  year = {2010},
  month = {May},
  type = {Preprint},
  number = {2010/21},
  address = {Bonn},
  url = {http://www.coll.mpg.de/pdf_dat/2010_21online.pdf}
}