X. Chai, B. Vuong, A. Doan, и J. Naughton. Proceedings of the 35th SIGMOD international conference on Management of data, стр. 87--100. New York, NY, USA, ACM, (2009)
M. Yuen, L. Chen, и I. King. Proceedings of the International Conference on Computational Science and Engineering, CSE '09, 4, стр. 723--728. (августа 2009)
K. Chan, I. King, и M. Yuen. Proceedings of the International Conference on Computational Science and Engineering, CSE '09, 4, стр. 1205--1210. (августа 2009)