[Klein] M. H. Klein, et. al., Department of Defense Trusted Systems Evaluation Criteria, DOD-CSC-84-001, Ft. Meade, MD, Department of Defense Computer Security Center, 1984 [The widely known 'Orange Book' which sets out criteria for the design, implementation, testing, and operation of trusted systems - the first in the 'Rainbow Series' of books by the NSA on computer security. Although this has become a de-facto standard, it does not address integrity of availability concerns.]