Volume 53, Number 1, 8 July 1991
Volume 53, Number 2, 19 July 1991
- M. Randall Holmes:
Systems of Combinatory Logic Related to Quine's `New Foundations'.
103-133

- Robert C. Reed:
A Decidable Ehrenfeucht Theory with Exactly Two Hyperarithmetic Models.
135-168

- Detlef Seese:
The Structure of Models of Decidable Monadic Theories of Graphs.
169-195

Volume 53, Number 3, 19 September 1991
Last update Mon May 20 16:23:28 2013
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