Anatoly E. Doroshenko Terry A. Halpin Stephen W. Liddle Heinrich C. Mayr Information Systems Technology and its Applications, 3rd International Conference ISTA'2004, June 15-17, 2004, Salt Lake City, Utah, USA, Proceedings ISTA LNI 48 GI 2004 3-88579-377-6 db/conf/ista/ista2004.html