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Doerfel, Stephan and Jäschke, Robert. "An Analysis of Tag-Recommender Evaluation Procedures." Paper presented at the meeting of the Proceedings of the 7th ACM conference on Recommender systems, New York, NY, USA, 2013.

Mueller, Juergen, Doerfel, Stephan, Becker, Martin, Hotho, Andreas and Stumme, Gerd. "Tag Recommendations for SensorFolkSonomies." Paper presented at the meeting of the Recommender Systems and the Social Web Workshop at 7th ACM Conference on Recommender Systems, RecSys 2013, Hong Kong, China -- October 12-16, 2013. Proceedings, 2013.

Doerfel, Stephan, Jäschke, Robert, Hotho, Andreas and Stumme, Gerd. "Leveraging Publication Metadata and Social Data into FolkRank for Scientific Publication Recommendation." Paper presented at the meeting of the Proceedings of the 4th ACM RecSys workshop on Recommender systems and the social web, New York, NY, USA, 2012.

Jannach, Dietmar. Recommender systems : an introduction. New York: Cambridge University Press, 2011.