1. Fenton, N.E., Pfleeger, S.L.: Software Metrics: A Rigorous and Practical Approach, 2nd edn. International Thomson Computer Press, Boston (1996)
2. Project Management Body of Knowledge, 3rd edn. Project Management Institute (2004)
3. ISO/IEC IS 20968:2002: Software Engineering - MK II Function Point Analysis - Counting Practices Manual (2002)
4. ISO/IEC IS 20926:2003: Software Engineering - IFPUG 4.1 Unadjusted Functional Size Measurement Method - Counting Practices Manual (2003)
5. ISO/IEC 19761:2003: Software Engineering - COSMIC-FFP: A Functional Size Measurement Method (2003)