Weichselbraun, A., Scharl, A., Liu, W. , "Capturing and Classifying Ontology Evolution in News Media Archives", 19th International Conference on Database and Expert Systems Applications (DEXA-2008), Turin, Italy, IEEE Computer Society, pp. 197-201, 2008  .

Weichselbraun, A., Scharl, A., Liu, W., Wohlgenannt, G. , "Capturing Ontology Evolution Processes by Repeated Sampling of Large Document Collections", On the Move to Meaningful Internet Systems 2007: OTM 2007 Workshops, Vilamoura, Portugal, Springer, pp. 23-24, 25/11/2007.

Scharl, A., Weichselbraun, A., Liu, W. , "Tracking and Modeling Information Diffusion across Interactive Online Media", International Journal of Metadata, Semantics and Ontologies, vol. 2, issue 2, pp. 136-145, 2007  .

Scharl, A., Weichselbraun, A., Liu, W. , "Tracking and Modeling Information Diffusion across Interactive Online Media", International Journal of Metadata, Semantics and Ontologies, vol. 3, no. 2, pp. In Press, 2006  .

Scharl, A., Weichselbraun, A., Liu, W. , "An Ontology-based Architecture for Tracking Information across Interactive Electronic Environments", 39th Hawaii International Conference on System Sciences (HICSS-39), Kauai, USA, IEEE Press, 2005  .

Liu, W., Weichselbraun, A., Scharl, A., Chang, E. , "Semi-Automatic Ontology Extension Using Spreading Activation", Journal of Universal Knowledge Management, no. 1, pp. 50-58, 2005  .

Liu, W., Weichselbraun, A., Scharl, A., Chang, E. , "Semi-Automatic Ontology Extension Using Spreading Activation", 5th International Conference on Knowledge Management (I-KNOW 2005), Graz, Austria, Springer, pp. 145-153, 2005  .