TY - JOUR AU - Ruitenburg, G. C. M. TI - Invariant ideals of polynomial algebras with multiplicity free group action JO - Compositio Mathematica PY - 1989 SP - 181 EP - 227 VL - 71 IS - 2 PB - Kluwer Academic Publishers UR - http://www.numdam.org/item/CM_1989__71_2_181_0/ LA - en ID - CM_1989__71_2_181_0 ER -