Marco Bodrato. Towards Optimal Toom–Cook Multiplication for Univariate and Multivariate Polynomials in Characteristic 2 and 0. In WAIFI'07 proceedings, volume 4547 of LNCS, pages 116–133. June 21–22, 2007. author website
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Positive Results, chapter III of Stephen A. Cook: On the Minimum Computation Time of Functions.
