Angelova, Ralitsa Databases and Information Systems, MPI for Informatics, Max Planck Society;
Angelova, R., Lipczak, M., Milios, E., & Prałat, P. (2008). Characterizing a social bookmarking and tagging network. In Proceedings of the ECAI 2008 Workshop on Mining Social Data (MSoDa) (pp. 21-25). http://www.iospress.nl/: IOS.