S. Abramsky. Electronic Notes in Theoretical Computer Science, (2006)Proceedings of the Workshop "Essays on Algebraic Process Calculi" (APC 25)Proceedings of the Workshop "Essays on Algebraic Process Calculi" (APC 25).
J. Howse. Proceedings of the 16th International Conference on Conceptual Structures (ICCS 2008), том 5113 из Lecture Notes in Computer Science, стр. 1-20. Springer, (2008)