Holzmann, W. H.; Kharaghani, H.; Sane, Sharad On a class of quasi-symmetric designs. (English) Zbl 1110.05018 J. Comb. Math. Comb. Comput. 57, 103-106 (2006). Summary: We show that for each positive integer \(t\), for which there is a skew-type Hadamard matrix of order \(4t\), there is a quasi-symmetric \(((4t-1)^2,(4t-1)(2t-1),t(4t-3))\) design. Cited in 1 Document MSC: 05B20 Combinatorial aspects of matrices (incidence, Hadamard, etc.) 05B05 Combinatorial aspects of block designs Keywords:Hadamard matrix PDFBibTeX XMLCite \textit{W. H. Holzmann} et al., J. Comb. Math. Comb. Comput. 57, 103--106 (2006; Zbl 1110.05018)