@inproceedings{DBLP:conf/sosp/FeiertagLR77,
author = {Richard J. Feiertag and
Karl N. Levitt and
Lawrence Robinson},
title = {Proving Multilevel Security of a System Design},
booktitle = {SOSP},
year = {1977},
pages = {57-65},
ee = {http://doi.acm.org/10.1145/800214.806547},
bibsource = {DBLP, http://dblp.uni-trier.de}
}