автор: M. Barr

M. Barr: *- Autonomous Categories

H. Appelgate & M. Barr: Seminar on Triples and Categorical Homology Theory

M. Barr & P. Berthiaume: Reports of the Midwest Category Seminar III

Phreilambud & H. Applegate: Reports of the Midwest Category Seminar IV

J. W. Gray & S. MacLane: Reports of the Midwest Category Seminar V

M. Barr & P. A. Grillet: Exact Categories and Categories of Sheaves