1. Covers and blocking sets of classical generalized quadrangles;Eisfeld;Discrete Math.,2001
2. New results on covers and partial spreads of polar spaces;Klein;Innov. Incidence Geom.,2005
3. O. Kroll, A representation theoretical proof of a theorem of Serre, Århus preprint, May 1986
4. Small point sets that meet all generators of W(2n+1,p);Metsch;Des. Codes Cryptogr.,2004
5. Serre's theorem on the cohomology algebra of a p-group;Minh;Bull. London Math. Soc.,1998