Doerfel, S. & Jäschke, R. (2013). An analysis of tag-recommender evaluation procedures. Proceedings of the 7th ACM conference on Recommender systems (p./pp. 343--346), New York, NY, USA: ACM. ISBN: 978-1-4503-2409-0

Landia, N., Doerfel, S., Jäschke, R., Anand, S. S., Hotho, A. & Griffiths, N. (2013). Deeper Into the Folksonomy Graph: FolkRank Adaptations and Extensions for Improved Tag Recommendations. cs.IR, 1310.1498.

Balby Marinho, L., Hotho, A., Jäschke, R., Nanopoulos, A., Rendle, S., Schmidt-Thieme, L., Stumme, G.,, Symeonidis, P. (2012). Recommender Systems for Social Tagging Systems. Springer. ISBN: 978-1-4614-1893-1

Jäschke, R., Hotho, A., Mitzlaff, F. & Stumme, G. (2012). Challenges in Tag Recommendations for Collaborative Tagging Systems. In J. J. Pazos Arias, A. Fernández Vilas & R. P. Díaz Redondo (ed.), Recommender Systems for the Social Web , Vol. 32 (pp. 65--87) . Springer . ISBN: 978-3-642-25694-3.

Antonellis, I., Garcia-Molina, H. & Karim, J. (2009). Tagging with Queries: How and Why?. In R. A. Baeza-Yates, P. Boldi, B. A. Ribeiro-Neto & B. B. Cambazoglu (eds.), WSDM (Late Breaking-Results), : ACM. ISBN: 978-1-60558-390-7

Cattuto, C., Benz, D., Hotho, A. & Stumme, G. (2008). Semantic Analysis of Tag Similarity Measures in Collaborative Tagging Systems. Proceedings of the 3rd Workshop on Ontology Learning and Population (OLP3), July, Patras, Greece.

Grahl, M., Hotho, A. & Stumme, G. (2007). Conceptual Clustering of Social Bookmark Sites. In A. Hinneburg (ed.), Workshop Proceedings of Lernen -- Wissensentdeckung -- Adaptivität (LWA 2007) (p./pp. 50-54), September, : Martin-Luther-Universität Halle-Wittenberg. ISBN: 978-3-86010-907-6

Grahl, M., Hotho, A. & Stumme, G. (2007). Conceptual Clustering of Social Bookmarking Sites. 7th International Conference on Knowledge Management (I-KNOW '07) (p./pp. 356-364), September, Graz, Austria: Know-Center.

Hayes, C., Avesani, P. & Veeramachaneni, S. (2007). An Analysis of the Use of Tags in a Blog Recommender System.. In M. M. Veloso (ed.), IJCAI (p./pp. 2772-2777), .

Koutrika, G., Effendi, F. A., Gyöngyi, Z., Heymann, P. & Garcia-Molina, H. (2007). Combating spam in tagging systems. AIRWeb '07: Proc. of the 3rd int. workshop on Adversarial inf. retrieval on the web (p./pp. 57--64), .

Santos-Neto, E., Ripeanu, M. & Iamnitchi, A. (2007). Tracking User Attention in Collaborative Tagging Communities

Cattuto, C., Loreto, V. & Pietronero, L. (2006). Collaborative Tagging and Semiotic Dynamics ({\tt arXiv:cs.CY/0605015})

Hotho, A., Jäschke, R., Schmitz, C. & Stumme, G. (2006). Das Entstehen von Semantik in BibSonomy. Social Software in der Wertschöpfung, Baden-Baden: Nomos.

Jäschke, R., Hotho, A., Schmitz, C., Ganter, B. & Stumme, G. (2006). TRIAS - An Algorithm for Mining Iceberg Tri-Lattices. Proceedings of the 6th IEEE International Conference on Data Mining (ICDM 06) (p./pp. 907-911), December, Hong Kong: IEEE Computer Society. ISBN: 0-7695-2701-9

Lambiotte, R. & Ausloos, M. (2006). Collaborative Tagging as a Tripartite Network. Computational Science – ICCS 2006 (p./pp. 1114-1117), : Springer Berlin / Heidelberg.

Sen, S., Lam, S. K., Rashid, A. M., Cosley, D., Frankowski, D., Osterhouse, J., Harper, F. M. & Riedl, J. (2006). tagging, communities, vocabulary, evolution. CSCW '06: Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work (p./pp. 181--190), New York, NY, USA: ACM. ISBN: 1-59593-249-6

Golder, S. & Huberman, B. A. (2005). The Structure of Collaborative Tagging Systems (). Information Dynamics Lab, HP Labs .

Golder, S. & Huberman, B. A. (2005). The Structure of Collaborative Tagging Systems

Lambiotte, R. & Ausloos, M. (2005). Collaborative tagging as a tripartite network ({\tt arXiv:cs.DS/0512090})