TY - JOUR AU - J. Leech TI - Towards a theory of noncommutative lattices. JO - Semigroup forum PY - 1986 SP - 117 EP - 120 VL - 34 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1986__34_134831/ ID - SF_1986__34_134831 ER -