@inproceedings{hoebel.ClusteringVisitors,
  author    = {Natascha Hoebel and Roberto V. Zicari},
  title     = {On Clustering Visitors of a Web Site by Behavior and Interests},
  booktitle = {Advances in Intelligent Web Mastering},
  series    = {Advances in Soft Computing},
  volume    = {43/2007},
  year      = {2007},
  isbn      = {978-3-540-72574-9},
  pages     = {160-167},
  doi       = {10.1007/978-3-540-72575-6},
  publisher = {Springer},
  address   = {Berlin, Germany},
  note      = {\url{http://www.dbis.cs.uni-frankfurt.de/downloads/research/on_clustering_visitors.pdf}}
}