J. Schiefer, S. Rozsnyai, C. Rauscher, и G. Saurer. DEBS '07: Proceedings of the 2007 inaugural international conference on Distributed event-based systems, стр. 198--205. New York, NY, USA, ACM, (2007)
T. Nguyen, J. Schiefer, и A. Tjoa. DOLAP '05: Proceedings of the 8th ACM international workshop on Data warehousing and OLAP, стр. 77--86. New York, NY, USA, ACM, (2005)