1. Anton A (1997) Goal identification and refinement in the specification of software-based information systems. Georgia Institute of Technology, USA
2. Institute of Electrical and Electronics Engineers (1998) IEEE 830-1998—IEEE recommended practice for software requirements specifications. New York
3. Pfitzmann A, Hansen M (2010) A terminology for talking about privacy by data minimization: anonymity, unlinkability, undetectability, unobservability, pseudonymity, and ıdentity management
4. Westlin A (1968) Privacy and freedom. Soc Work 13(4):114–115
5. ISO/IEC 15408-1:2009—Information technology—Security techniques—Evaluation criteria for IT security (2009)