1. R. Anderson and D.A.M. Barrington, private communication, 1989.
2. Bounded-width polynomial-size branching programs recognize exactly those languages in NC1;Barrington,1986
3. On uniformity within NC1;Mix Barrington,1988
4. Non-uniform automata over groups;Barrington,1987
5. D.A. Barrington, H. Straubing and D. Thérien, Non-uniform automata over groups, Inform. and Comput., in press.