Introduction to Factor Analysis of Information Risk (FAIR)", Risk Management Insight LLC, November 2006 (页面存档备份,存于互联网档案馆); IETF RFC 2828 FISMApedia TERM
Giovanardi, Simone; Tennyson, Alan J. D. Largest-known fossil penguin provides insight into the early evolution of sphenisciform body size and flipper anatomy