TY - JOUR AU - Gert Almkvist TI - Commutative and noncommutative invariant theory JO - Banach Center Publications PY - 1990 SP - 259 EP - 268 VL - 26 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/-26-2-259-268/ DO - 10.4064/-26-2-259-268 LA - en ID - 10_4064__26_2_259_268 ER -