M. Anand, S. Bowers, T. McPhillips, and B. Ludäscher. EDBT '09: Proceedings of the 12th International Conference on Extending Database Technology, page 958--969. New York, NY, USA, ACM, (2009)
S. Bowers, T. McPhillips, M. Wu, and B. Ludäscher. Proc. of the Intl. Workshop on Data Integration in the Life Sciences (DILS), volume 4544 of LNCS, page 122--138. (2007)