Change Analysis: A Step towards Meeting the Challenge of Changing Requirements. - M. R. Strens; R. C. Sugden (ECBS, 1996)

Strategies, Tactics and Methods for Handling Change. - R. C. Sugden; M. R. Strens (ECBS, 1996)

Meeting the Challenge of Changing Requirements. - R. C. Sugden; M. R. Strens; John E. Dobson (SSS, 1996)