1. Jacobson, I. et al. Object-Oriented Software Engineering. A Use Case Driven Approach. Addison-Wesley, 1992.
2. Kulak, D. & Guiney, E. Use Cases: Requirements in Context. Addison-Wesley, 2000.
3. Booch, G., Rumbaugh, J. & Jacobson, I. The Unified Modeling Language User Guide. Addison-Wesley, 1999.
4. Cockburn, A. Structuring Use Cases with Goals. Technical report. Human and Technology, 7691 Dell Rd, Salt Lake City, UT 84121, Ha.T.TR.95.1, http://members.aol.com/acockburn/papers/usecases.html , 1995.
5. Cockburn, A. Writing Effective Use Cases. Addison-Wesley, 2000.