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Jäschke, Robert, Hotho, Andreas, Schmitz, Christoph, Ganter, Bernhard, Stumme, Gerd: TRIAS - An Algorithm for Mining Iceberg Tri-Lattices. In: Proceedings of the 6th IEEE International Conference on Data Mining (ICDM 06). Hong Kong : IEEE Computer Society, 2006. - ISBN 0-7695-2701-9, S. 907-911
Schmitz, Christoph, Hotho, Andreas, Jäschke, Robert, Stumme, Gerd ; Batagelj, V., Bock, H.-H., Ferligoj, A., vZiberna, A.: Mining Association Rules in Folksonomies. In: Data Science and Classification: Proc. of the 10th IFCS Conf.. Berlin, Heidelberg : Springer, 2006 (Studies in Classification, Data Analysis, and Knowledge Organization), S. 261--270