1. http://www.csr.city.ac.uk/research.html
2. http://www.adelard.com/web/hnav/ASCE/choosing-asce/cae.html
3. http://www.il.is.s.u-tokyo.ac.jp/deos/dcase
4. Workshop on Assurance Cases: Best Practices,Possible Obstacles, and Future Opportunities, DSN 2004 (2004)
5. Aurum, A., Wohlin, C. (eds.): Engineering and Managing Software Requirements Engineering and Managing Software Requirements. Springer (2010)