Dempwolff, Ulrich Extensions of elementary Abelian groups of order 2\(^{2n}\) by S\(_{2n}\)(2) and the degree 2-cohomology of S\(_{2n}\)(2). (English) Zbl 0284.20039 Ill. J. Math. 18, 451-468 (1974). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 10 Documents MSC: 20E22 Extensions, wreath products, and other compositions of groups 20D05 Finite simple groups and their classification PDFBibTeX XMLCite \textit{U. Dempwolff}, Ill. J. Math. 18, 451--468 (1974; Zbl 0284.20039)