1. Bose, R. C. and Srivastava, J. N. (1964a). Analysis of irregular factorial fractions,Sankhya, A,26, 117–144.
2. Bose, R. C. and Srivastava, J. N. (1964b). Multidimensional partially balanced designs and their analysis, with applications to partially balanced factorial fractions,Sankhya, A,26, 145–168.
3. Chopra, D. V. (1968). Investigations on the construction and existence of balanced fractional factorial designs of 2 m series, Ph.D. Thesis, University of Nebraska.
4. Kiefer, J. C. (1959). Optimum experimental designs,Jour. Roy. Stat. Soc., B,21, 273–319.
5. Srivastava, J. N. (1971). Some general existence conditions for balanced arrays of strengtht and 2 symbols,Jour. Comb. Th., A,13, 198–206.