Benz, D.; Krause, B.; Kumar, G. P.; Hotho, A. & Stumme, G. (2009), Characterizing Semantic Relatedness of Search Query Terms, in 'Proceedings of the 1st Workshop on Explorative Analytics of Information Networks (EIN2009)' .

Jäschke, R.; Krause, B.; Hotho, A. & Stumme, G. (2008), Logsonomy -- A Search Engine Folksonomy, in 'Proceedings of the Second International Conference on Weblogs and Social Media(ICWSM 2008)' , AAAI Press, .

Krause, B.; Hotho, A. & Stumme, G. (2008), A Comparison of Social Bookmarking with Traditional Search, in Craig Macdonald; Iadh Ounis; Vassilis Plachouras; Ian Ruthven & Ryen W. White, ed., '30th European Conference on IR Research, ECIR 2008' , Springer, Glasgow, UK , pp. 101-113 .