1. International Telecommunication Union: Recommendation Z.100 series, Specification and Description Language,
http://www.itu.int/rec/T-REC-Z.100/en
2. SDL-RT Standard (2013),
http://www.sdl-rt.org/standard/V2.3/pdf/SDL-RT.pdf
3. Lecture Notes in Computer Science;D. Christmann,2011
4. Lecture Notes in Computer Science;D. Christmann,2013
5. Lecture Notes in Computer Science;A. Blunk,2013