1. D. J. Benson and J. F. Carlson, Cohomology of the double cover of the Mathieu group M12, J. Algebra 226 (2000), no. 1, 547–576.[MR]
  2. Dave Benson, Conway's group Co3 and the Dickson invariants, Manuscripta Math. 85 (1994), no. 2, 177–193.[MR]
  3. Dave Benson, Dickson invariants, regularity and computation in group cohomology, Illinois J. Math. 48 (2004), no. 1, 171–197.[MR/link]
  4. Dave Benson, An algebraic model for chains on Ω BG∧p, Trans. Amer. Math. Soc. 361 (2009), no. 4, 2225-2242.