1. Smith, R.G.: The contract net: A formalism for the control of distributed problem solving. In: 5th Conference on Artificial Intelligence (IJCAI 1977) (1977)
2. zur Mühlen, M.: Evaluation of workflow management systems using meta models. In: International Conference on System Sciences, vol. 5. IEEE CS, Los Alamitos (1999)
3. van der Aalst, W.V.D.: Verification of workflow nets. In: [20], pp. 407–426
4. Durfee, E.H., Lesser, V.R., Corkill, D.D.: Trends in cooperative distributed problem solving. Transactions on Knowledge and Data Engineering 1, 63–83 (1989)
5. Ellis, C.A., Wainer, J.: Groupware and computer supported cooperative work. In: Weiß, G. (ed.) Multiagent systems, pp. 425–458. MIT Press, Cambridge (1999)