Software in Safety-Related Systems, by Brian Wichmann (Editor), Wiley, 1992 and Safety-Critical Systems: Current Issues, Techniques and Standards, Felix Redmill and Tom Anderson (Editors), Chapman & Hall, 1993 and Directions in Safety-Critical Systems, by Felix Redmill and Tom Anderson (Editors), Springer-Verlag, 1993 and Technology and Assessment of Safety-Critical Systems, Felix Redmill and Tom Anderson (Editors), Springer-Verlag, 1994 and Achievement and Assurance of Safety, Felix Redmill and Tom Anderson (Editors), Springer-Verlag, 1995 and Journal: High Integrity Systems, Andrew D. McGettrick (Editor), Oxford University Press (Books and Journal Review).