TY - JOUR AU - KROPHOLLER, P. H. AU - RAJAEI, S. MOHSENI AU - SEGAL, J. TI - INVARIANT RINGS OF ORTHOGONAL GROUPS OVER ${\mathbb F}_2$ JO - Glasgow mathematical journal PY - 2005 SP - 7 EP - 54 VL - 47 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089504002198/ DO - 10.1017/S0017089504002198 ID - 10_1017_S0017089504002198 ER -