TY - JOUR AU - Gerald W. Schwarz TI - Invariant theory of G2 and Spin7. JO - Commentarii mathematici Helvetici PY - 1988 SP - 624 EP - 663 VL - 63 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMH_1988__63_4_140137/ ID - CMH_1988__63_4_140137 ER -