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.

Illig, J., Hotho, A., Jäschke, R. & Stumme, G. (2011). A Comparison of Content-Based Tag Recommendations in Folksonomy Systems. In K. E. Wolff, D. E. Palchunov, N. G. Zagoruiko & U. Andelfinger (eds.), Knowledge Processing and Data Analysis (p./pp. 136--149), Berlin/Heidelberg: Springer. ISBN: 978-3-642-22139-2

Benz, D., Hotho, A., Jäschke, R., Krause, B. & Stumme, G. (2010). Query Logs as Folksonomies. Datenbank-Spektrum, 10, 15--24.