gzipped postscript
or
postscript
@InCollection{Srivas97:chapter,
title = "Hardware Verification Using {PVS}",
author = "Mandayam Srivas and Harald Rue{\ss} and David Cyrluk",
booktitle = "Formal Hardware Verification: Methods and Systems in
Comparison",
editor = "Thomas Kropf",
pages = "156--205",
publisher = "Springer-Verlag",
series = "Lecture Notes in Computer Science",
volume = "1287",
year = "1997",
}