Franklin, Michael J. and Kossmann, Donald and Kraska, Tim and Ramesh, Sukriti and Xin, Reynold. CrowdDB: answering queries with crowdsourcing. Proceedings of the 2011 international conference on Management of data. 61--72, ACM, New York, NY, USA, Year 2011.

Yuen, Man-Ching and Chen, Ling-Jyh and King, I.. A Survey of Human Computation Systems. Proceedings of the International Conference on Computational Science and Engineering, CSE '09. (4) 723--728, Year 2009.

Brand, Matthew. Fast Low-Rank Modifications of the Thin Singular Value Decomposition. In Linear Algebra and Its Applications, (415) 1: 20--30, Year 2006.

Stumme, G. and Taouil, R. and Bastide, Y. and Pasquier, N. and Lakhal, L.. Fast Computation of Concept Lattices Using Data Mining Techniques. Proc. 7th Intl. Workshop on Knowledge Representation Meets Databases. editor(s) Bouzeghoub, M. and Klusch, M. and Nutt, W. and Sattler, U.. Year 2000.

Golub, Gene H. and Loan, Charles F. Van. Matrix Computations. The Johns Hopkins University Press, Year 1996.