MathSciNet bibliographic data MR778675 (86h:20073) 20H30 (20D05) Hartley, B.; Shahabi Shojaei, M. A. Finite quasisimple groups of $2\times 2$$2\times 2$ matrices over a division ring. Math. Proc. Cambridge Philos. Soc. 97 (1985), no. 3, 415–420. Article

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