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@article{Woodall1997ANO, title={A Note on Fisher's Inequality}, author={Douglas R. Woodall}, journal={J. Comb. Theory, Ser. A}, year={1997}, volume={77}, pages={171-176} }

- Published in J. Comb. Theory, Ser. A 1997
DOI:10.1006/jcta.1996.2729

A design D consists of a family B1 , ..., Bb of subets, called blocks, of a finite set S=[P1 , ..., Pv] whose elements are called points or varieties. D is balanced or *-linked if every pair of points is contained in exactly * blocks. If, in addition, *>0 and no block contains all the points, then D is nontrivial, and if every block has the same cardinality k then D is a balanced incomplete-block design or BIBD. Fisher [5] proved that if D is a BIBD, then b v. Bose [3] gave a neat short proof… CONTINUE READING