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Halving block designs with block size four
1991
The Australasian Journal of Combinatorics
Preserved Fulltext
B) is said to have the Size Four property if the blocks in B can be partitioned into two isomorphic sets. In this paper we construct block with four with the property, thus the exception of 6 A. Rosa [4]).
dblp:journals/ajc/Phelps91
fatcat:lyw762xxy5gyje4ihg64on5j34