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