J. Berrut, R. Baltensperger, und H. Mittelman. Trends and Applications in Constructive Approximation, Volume 155 von International Series of Numerical Mathematics, Birkh\äuser, Basel, (2005)
A. Cedilnik, B. Geveci, K. Moreland, J. Ahrens, und J. Favre. Proceedings of the 6th Eurographics Conference on Parallel Graphics and Visualization, Seite 163--170. Aire-la-Ville, Switzerland, Switzerland, Eurographics Association, (2006)