TY  - BOOK
AU  - Aczel,Peter
AU  - Simmons,Harold
AU  - Wainer,S.S
TI  - Proof theory: a selection of papers from the Leeds Proof Theory Programme, 1990 
SN  - 9780521054164 (pbk.)
PY  - 2008///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Proof theory
N1  - First published 1992; Includes bibliographical references
ER  -