The local theory of semigroups in nilpotent Lie groups. K.H. Hofmann; J.D. Lawson — 1981 Semigroup forum
The Bohr compactification of a dense ideal in a topological semigroup. J.D. Lawson; J.A. Hildebrant — 1974 Semigroup forum
Topological semi-lattices and their underlying spaces. J.D. Lawson; W. Williams — 1970 Semigroup forum
Embedding in compact uniquely divisible semigroups. J.D. Lawson; J.A. Hildebrant — 1972 Semigroup forum
Controllability of systems on a nilpotent Lie group J. Hilgert; K.H. Hofmann; J.D. Lawson — 1985 Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry
Intrinsic topologies on semilattices of finite breadth. J.D. Lawson; G. Gierz; A.R. Stralka — 1985 Semigroup forum