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2. A new balanced incomplete block design;Bhattacharya;Sci. Culture,1944
3. Edge regular multigraphs and partial geometric designs with an application to the embedding of quasi-residual designs;Bose,1976
4. Designs, Graphs, Codes and their Links;Cameron,1991
5. An embedding theorem for balanced incomplete block designs;Hall;Canad. J. Math.,1953