1. J. Aaronson, C. Groenl, T. Johnston, Cyclically covering subspaces in F2n, preprint, 2019. arXiv:1903.10613.
2. Research problems,1994
3. Intersecting families of finite sets and fixed-point-free 2-elements;Cameron;European J. Combin.,1989
4. Relative Brauer groups II;Fein;J. Reine Angew. Math.,1981
5. Artin’s conjecture for primitive roots;Heath-Brown;Q. J. Math.,1986