BibTeX:
@inproceedings{Nazareth-Nipkow,
author={Dieter Nazareth and Tobias Nipkow},
title={Formal Verification of Algorithm {W}: The Monomorphic Case},
booktitle={Theorem Proving in Higher Order Logics (TPHOLs'96)},
editor={J. von Wright and J. Grundy and J. Harrison},
publisher=Springer,series=LNCS,volume=1125,pages={331--346},
url={http://www4.informatik.tu-muenchen.de/~nipkow/pubs/tphol96.dvi.gz},
year=1996}
This work has been extended by Naraschewski and Nipkow
to include let.