Graham Jullien, Vassil Dimitrov, and Khan Arif Wahid, "Error-free Arithmetic for Discrete Wavelet Transforms Using Algebraic Integers", Proceedings of the 16^th IEEE Symposium on Computer Arithmetic, Santiago de Compostela, Spain, June 15-18, 2003

K. Wahid, V. Dimitrov, G. Jullien, "Error-Free Computation of 8x8 2-D DCT and IDCT using Two-Dimensional Algebraic Integer Quantization", Proceedings of the 17^th IEEE Symposium on Computer Arithmetic, Cape Cod, Massachusetts, June 27-29, 2005