Hoffman, Dean G.; Kreher, Donald K. The bigraphical \(t\)-wise balanced designs of index 1. (English) Zbl 0820.05007 J. Comb. Des. 2, No. 1, 41-48 (1994). Reviewer: D.V.Chopra (Wichita) MSC: 05B05 PDFBibTeX XMLCite \textit{D. G. Hoffman} and \textit{D. K. Kreher}, J. Comb. Des. 2, No. 1, 41--48 (1994; Zbl 0820.05007) Full Text: DOI
Billington, Elizabeth J.; Hoffman, D. G. Pairs of simple balanced ternary designs with prescribed numbers of triples in common. (English) Zbl 0776.05007 Australas. J. Comb. 5, 59-71 (1992). MSC: 05B05 PDFBibTeX XMLCite \textit{E. J. Billington} and \textit{D. G. Hoffman}, Australas. J. Comb. 5, 59--71 (1992; Zbl 0776.05007)
Colbourn, Charles J.; Hoffman, Dean G.; Rees, Rolf A new class of group divisible designs with block size three. (English) Zbl 0759.05012 J. Comb. Theory, Ser. A 59, No. 1, 73-89 (1992). Reviewer: L.Teirlinck (Auburn) MSC: 05B05 05B07 PDFBibTeX XMLCite \textit{C. J. Colbourn} et al., J. Comb. Theory, Ser. A 59, No. 1, 73--89 (1992; Zbl 0759.05012) Full Text: DOI
Billington, Elizabeth J.; Hoffman, D. G. The number of repeated blocks in balanced ternary designs with block size three. II. (English) Zbl 0751.05019 Discrete Math. 92, No. 1-3, 25-37 (1991). Reviewer: C.J.Colbourn (Waterloo / Ontario) MSC: 05B30 05B05 PDFBibTeX XMLCite \textit{E. J. Billington} and \textit{D. G. Hoffman}, Discrete Math. 92, No. 1--3, 25--37 (1991; Zbl 0751.05019) Full Text: DOI
Colbourn, Charles J.; Hoffman, Dean G.; Phelps, Kevin T.; Rödl, Vojtěch; Winkler, Peter M. The number of \(t\)-wise balanced designs. (English) Zbl 0759.05011 Combinatorica 11, No. 3, 207-218 (1991). Reviewer: B.L.Raktoe (Kingston) MSC: 05B05 05B07 05B30 PDFBibTeX XMLCite \textit{C. J. Colbourn} et al., Combinatorica 11, No. 3, 207--218 (1991; Zbl 0759.05011) Full Text: DOI
Billington, Elizabeth J.; Hoffman, D. G. The number of repeated blocks in balanced ternary designs with block size three. (English) Zbl 0693.05010 J. Comb. Math. Comb. Comput. 6, 163-172 (1989). Reviewer: C.J.Colbourn MSC: 05B05 PDFBibTeX XMLCite \textit{E. J. Billington} and \textit{D. G. Hoffman}, J. Comb. Math. Comb. Comput. 6, 163--172 (1989; Zbl 0693.05010)