W.J. Cody, Analysis of Proposals for the Floating-Point Standard, in Computer, vol. 14, n. 3, March 1981, p. 65, DOI:10.1109/C-M.1981.220379. URL consultato l'11 settembre 2012.
«With appropriate care to be certain that the algebraic signs are not determined by rounding error, the affine mode preserves order relations while fixing up overflow. Thus, for example, the reciprocal of a negative number which underflows is still negative.»
