1. Antoniol G, Canfora G, DeLucia A, Merlo E (2002) Recovering Traceability Links between Code and Documentation. IEEE Trans Softw Eng 28:970–983
2. Binder R (1999) Testing object-oriented Systems – Models, Patterns and Tools. Addison-Wesley, Reading, MA, 481 pp
3. Cockburn A (2000) Writing Effective Use Cases. Addison-Wesley Professional, Boston, 270 pp
4. Davis A (1990) Software Requirements – Analysis and Specification. Prentice-Hall, Englewood Cliffs, NJ, 362 pp
5. Ebert C (2005) Systematic Requirements Management. dpunkt, Heidelberg, 87 pp