https://www.semanticscholar.org/paper/Computer-Security-Technology-Planning-Study-Anderson/07356c5477c83773bd062b525f45c433e5b044e8 https://www.semanticscholar.

https://www.semanticscholar.org/paper/Computer-Security-Technology-Planning-Study-Anderson/07356c5477c83773bd062b525f45c433e5b044e8 https://www.semanticscholar.org/paper/Computer-Security-Tech... csrc.nist.gov/publications/history/ande72.pdf