TY - JOUR AU - Reilly, Norman R. TI - A Subsemilattice of the Lattice of Varieties of Lattice Ordered Groups JO - Canadian journal of mathematics PY - 1981 SP - 1309 EP - 1318 VL - 33 IS - 6 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-099-2/ DO - 10.4153/CJM-1981-099-2 ID - 10_4153_CJM_1981_099_2 ER -