TY - JOUR AU - Thomas C. Craven TI - On the Prime Ideal of an Ordering of Higher Level. JO - Mathematische Zeitschrift PY - 1982 SP - 553 EP - 566 VL - 180 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1982__180_173212/ ID - MZ_1982__180_173212 ER -