Ito, Noburo; Leon, Jeffrey S.; Longyear, Judith Q. Hadamard tournaments of order 23. (English) Zbl 0824.05013 Math. J. Okayama Univ. 35, 1-15 (1993). MSC: 05B20 PDFBibTeX XMLCite \textit{N. Ito} et al., Math. J. Okayama Univ. 35, 1--15 (1993; Zbl 0824.05013)
Ito, Noboru; Longyear, Judith Q. Hadamard matrices of Bush type. (English) Zbl 0593.05012 Math. J. Okayama Univ. 27, 127-133 (1985). Reviewer: S.S.Agayan MSC: 05B20 PDFBibTeX XMLCite \textit{N. Ito} and \textit{J. Q. Longyear}, Math. J. Okayama Univ. 27, 127--133 (1985; Zbl 0593.05012)
Ito, Noboru; Leon, Jeffrey S.; Longyear, Judith Q. Classification of 3-(24, 12, 5) designs and 24-dimensional Hadamard matrices. (English) Zbl 0477.05019 J. Comb. Theory, Ser. A 31, 66-93 (1981). MSC: 05B20 05B05 05A15 PDFBibTeX XMLCite \textit{N. Ito} et al., J. Comb. Theory, Ser. A 31, 66--93 (1981; Zbl 0477.05019) Full Text: DOI