TY - JOUR AU - Michael Singer TI - A Product Theorem for Lattices over Orders. JO - Mathematica Scandinavica PY - 1971 SP - 50 EP - 54 VL - 29 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MS2_1971__29_166192/ ID - MS2_1971__29_166192 ER -