The Chu construction: history of an idea. Barr, Michael — 2006 Theory and Applications of Categories [electronic only]
An appreciation of Jim Lambek at McGill. A talk given on the occasion of Jim Lambek's 75th birthday. Barr, Michael — 1999 Theory and Applications of Categories [electronic only]
*-autonomous categories: Once more around the track. Barr, Michael — 1999 Theory and Applications of Categories [electronic only]
Oriented singular homology. Barr, Michael — 1995 Theory and Applications of Categories [electronic only]
Note on a theorem of Putnam's. Barr, Michael — 1997 Theory and Applications of Categories [electronic only]
The separated extensional Chu category. Barr, Michael — 1998 Theory and Applications of Categories [electronic only]
Topological * -autonomous categories. Barr, Michael — 2006 Theory and Applications of Categories [electronic only]
On subgroups of the Lambek pregroup. Barr, Michael — 2004 Theory and Applications of Categories [electronic only]
HSP subcategories of Eilenberg-Moore algebras. Barr, Michael — 2002 Theory and Applications of Categories [electronic only]
On Mackey topologies in topological abelian groups. Barr, Michael; Kleisli, Heinrich — 2001 Theory and Applications of Categories [electronic only]
Duality of Banach spaces Michael Barr — 1976 Cahiers de Topologie et Géométrie Différentielle Catégoriques
A closed category of reflexive topological abelian groups Michael Barr — 1977 Cahiers de Topologie et Géométrie Différentielle Catégoriques
The point of the empty set Michael Barr — 1972 Cahiers de Topologie et Géométrie Différentielle Catégoriques
Closed categories and Banach spaces Michael Barr — 1976 Cahiers de Topologie et Géométrie Différentielle Catégoriques
Closed categories and topological vector spaces Michael Barr — 1976 Cahiers de Topologie et Géométrie Différentielle Catégoriques