S. Bowers, and B. Ludäscher. Proceedings of the Workshop on Query Langauges and Query Processing (QLQP), volume 4254 of LNCS (EDBT Workshops), page 712--723. (2006)
A. Mockus, R. Fielding, and J. Herbsleb. Proceedings of the 22nd International Conference on Software Engineering (ICSE 2000), page 263-272. Limerick, Ireland, (2000)
M. Haungs, R. Pandey, E. Barr, and J. Barnes. Proceedings of the Ninth International Conference on High Performance Computing (HiPC 2002), Bangalore, India, (2002)