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2. Edge regular multigraphs and partial geometric designs with an application to the embedding of quasi-residual designs;Bose;Teorie Combinatorie I, Acad. Naz. Lincei,1976
3. A new non-extensible (16, 24, 9, 6, 3)-design;Brown;J. Comb. Theory,1975
4. Computing techniques for the construction and analysis of block designs;Gibbons;Thesis Univ. of Toronto,1976
5. Combinatorial Theory;Hall,1967