1. Box GEP, Hunter JS (1961) The 2k-p fractional factorial designs. Technometrics 27:173–180
2. Box GEP, Hunter WG, Hunter JS (1978) Statistics for experimenters. Wiley, New York
3. Goh D, Street DJ (1998) Projective properties of small Hadamard matrices and fractional factorial designs. J. Combin. Math. Combin. Comput. 28:141–148
4. Hall M Jr. (1961) Hadamard matrices of order 16. J. P. L. Research Summary, No. 36-10, 1:21–26
5. Hall M Jr. (1965) Hadamard matrices of order 20. J. P. L. Technical Report, No. 32-761