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Regular Polytopes. Macmillan Co., New York, 1962.
MR 0151873
[2] D. Raghavarao:
Constructions and Combinatorial Problems in Design of Experiments. John Wiley & Sons, Inc., New York, 1971.
MR 0365935 |
Zbl 0222.62036
[3] G. M. Saha:
On Construction of $T_m$-type PBIB Designs. Annals Inst. Statist. Math. Vol. 25, No. 3, 1973.
MR 0350988 |
Zbl 0321.05014
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MR 0363954 |
Zbl 0274.05002