Similarity cross-analysis of tag / co-tag spaces in social classification systems. - Steffen Oldenburg; Martin Garbe; Clemens H. Cap (SSM, 2008)

Comparative Studies of Social Classification Systems Using RSS Feeds. - Steffen Oldenburg (WEBIST (2), 2008)

Comparison of Social Classification Systems in a Heterogeneous Environment. - Steffen Oldenburg (WEBIST (Selected Papers), 2008)