A Product Family Approach to Graceful Degradation. - William Nace; Phil Koopman (DIPES, 2000)

Encryption using KEA and SKIPJACK. - Russell Housley; Peter E. Yee; William Nace (RFC, 2000)

A Framework for Scalable Analysis and Design of System-wide Graceful Degradation in Distributed Embedded Systems. - Charles P. Shelton; Philip Koopman; William Nace (WORDS, 2003)