1. P. A. Fox, A. D. Hall, and N. L. Schryer, “The PORT Mathematical Subroutine Library,” Computing Science Technical Report No. 47 Bell Laboratories, Murray Hill, New Jersey, September 1976, revised May 1977. To appear in ACM Trans. Math. Software.
2. “Accuracy of Floating-Point Arithmetic,”;Knuth,1969
3. Interval Analysis;Moore,1966
4. J. L. Blue, “A Portable Fortran Program to Find the Euclidean Norm of a Vector,” Computing Science Technical Report No. 45 Bell Laboratories, Murray Hill, New Jersey, February 1977. To appear in ACM Trans. Math. Software.