TY - JOUR AU - Zhengping, Zhou TI - A Lattice Isomorphism Theorem for Nonsingular Retractable Modules JO - Canadian mathematical bulletin PY - 1994 SP - 140 EP - 144 VL - 37 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-020-5/ DO - 10.4153/CMB-1994-020-5 ID - 10_4153_CMB_1994_020_5 ER -