%0 Journal Article %A Cordes, Craig M. %T Some Results on Totally Isotropic Subspaces and Five-Dimensional Quadratic Forms Over GF(q) %J Canadian journal of mathematics %D 1975 %P 271-275 %V 27 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-033-8/ %R 10.4153/CJM-1975-033-8 %F 10_4153_CJM_1975_033_8