@article{TUC-CSCW/HZP06,
  author = "A. Harrer and S. Zeini and N. Pinkwart",
  title = "Evaluation of Communication in Web-supported Learning Communities - An Analysis with Triangulation Research Design",
  year = 2006,
  journal = "International Journal of Web Based Communities",
  volume = 2,
  number = 4
}