1. Lecture Notes in Computer Science;A. Armstrong,2014
2. Armstrong, A., Struth, G., Weber, T.: Kleene algebra. In: Archive of Formal Proofs (2013)
3. Lecture Notes in Computer Science;A. Armstrong,2013
4. Lecture Notes in Computer Science;J.C. Blanchette,2010
5. Brookes, S.: Full abstraction for a shared variable parallel language. In: Okada, M., Panangaden, P. (eds.) LICS, 1993, pp. 98–109 (1993)