TY - JOUR AU - McAdam, Stephen TI - Going Down in Polynomial Rings JO - Canadian journal of mathematics PY - 1971 SP - 704 EP - 711 VL - 23 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-079-5/ DO - 10.4153/CJM-1971-079-5 ID - 10_4153_CJM_1971_079_5 ER -