FURPS引文使用过时参数coauthors (帮助) Grady, Robert; Caswell, Deborah. Software Metrics: Establishing a Company-wide Program. Prentice Hall. 1987: 159. ISBN 0-13-821844-7
特蕾西·D·霍爾Barbara I. Dewey and Loretta Parham. Neal-Schuman, 2006; Hall, Tracie D. and Jenifer Grady. "Diversity, Recruitment, and Retention: Going from Lip Service