Failure mode effects analysis: A practical application of functional modeling. - John E. Hunt; D. R. Pugh; Chris J. Price (Appl. Artif. Intell., 1995)

Combining functional and structural reasoning for safety analysis of electrical designs. - Chris J. Price; Neal Snooke; D. R. Pugh; John E. Hunt; Myra S. Wilson (Knowl. Eng. Rev., 1997)