Franklin, Michael J., Kossmann, Donald, Kraska, Tim, Ramesh, Sukriti, Xin, Reynold: CrowdDB: answering queries with crowdsourcing. In: Proceedings of the 2011 international conference on Management of data. New York, NY, USA : ACM, 2011. - ISBN 978-1-4503-0661-4, S. 61--72
Yuen, Man-Ching, Chen, Ling-Jyh, King, I.: A Survey of Human Computation Systems. 4. In: Proceedings of the International Conference on Computational Science and Engineering, CSE '09, 2009, S. 723--728
Brand, Matthew, Fast Low-Rank Modifications of the Thin Singular Value Decomposition, in: Linear Algebra and Its Applications 415 1 (2006), S. 20--30.
Stumme, G., Taouil, R., Bastide, Y., Pasquier, N., Lakhal, L. ; Bouzeghoub, M., Klusch, M., Nutt, W., Sattler, U.: Fast Computation of Concept Lattices Using Data Mining Techniques. In: Proc. 7th Intl. Workshop on Knowledge Representation Meets Databases, 2000. - \url{http://ceur-ws.org/Vol-29.} {P}art of \cite{stumme02computing}
Golub, Gene H., Loan, Charles F. Van Matrix Computations, 3rd. Aufl..