Olsthoorn, P and L.M.M. Royakkers, Risks and Robots – some ethical issues, The Ethics of Emerging Military Technologies, ISME, San Diego 2011.

Royakkers, L.M.M. and M. Verkerk, Modeling responsibility in organizations. In: A.P. dor Reis (ed.),Proceedings of the IADIS International Conference Intelligent Systems and Agents, IADIS Press: Algarve 2009, pp. 177-187.

Lima, de, T, L.M.M. Royakkers, F. Dignum: Modeling the problem of many hands in organisations. ECAI 2010: 79-84

Lima, de, T., L.M.M. Royakkers and F. Dignum, Behaving responsible in multi-agent worlds, In: K. Decker et al. (eds.), Proceedings of the 8th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2009), May 10–15, 2009, Budapest, Hungary, pp. 1139–1140, 2009.

Lima, de, T, L.M.M Royakkers and F. Dignum, Towards a formalization of responsibility, In: G. Boella, G. Pigozzi, M. Singh and H. Verhagen (eds.), Proceedings of 3rd International Workshop on Normative Multiagent Systems (NorMAS 2008), Luxembourg 2008, pp. 66-79.

Royakkers, L.M.M. and B. van Klink, Equality in utilitarian reasoning. Or: How useful is the pragma-dialectical approach as an analytical and critical tool? In: F.H. van Eemeren, J.A. Blair, Ch.A. Willard and B. Garssen (eds.), Proceedings of the Sixth Conference on the International Society for the Study of Argumentation, Sic Sat: Amsterdam 2007, pp. 1203-1210.

Royakkers, L.M.M. and C. Dorst, The ethical cycle and judgment in design, Wonderground – the 2006 Design Research Society International Conference, 2006 (Lissabon)

Grossi, D., L.M.M. Royakkers, F. Dignum, V, Dignum and M. Dastani, Structural Evaluation of Agent Organizations, in: Proceedings of AAMAS’06, Fifth International Joint Conference on Autonomous Agents and Multiagent Systems, ACM Press, 2006.

Royakkers, L.M.M. and M. Verkerk, Formalization of multi-dimensional responsibility. Taylor versus socio-technical systems design, Workshop on Distributed Intelligent Systems: Collective Intelligence and Its Applications (DIS’06), IEEE Computer Society: Washington 2006, pp. 309-314.

Royakkers, L.M.M., D. Grossi and F. Dignum, Organizational Structure and Responsibility, in: José Cordeiro and Joaquim Filipe (eds.), Computer Supported Activity Coordination, 2006, pp. 65-74.

Royakkers, L.M.M., Responsibilities in Organizations: Who Gets the Blame?, International Conference on Collective Intentionality, 2006 (Helsinki).

Royakkers, L.M.M. and B. van Klink, Equality in Normative Reasoning, the Sixth Conference of the International Society for the Study of Argumentation (Amsterdam 2006), to be published.

Klink, van, B. and L.M.M. Royakkers, Analogy, Cognition and Reasoning (abstract), in: Z. Maalej (ed.), Fourth International Conference on Researching and Applying Metaphor: Methaphor, Cognition, and Culture, Tunis 5-7 april 2001, p. 40.

Royakkers, L.M.M., Language and Games, in U. Meixner and P. Simons (eds.), Metaphysics in the post-metaphysical age, Kirchberg am Wechsel: Austrian Ludwig Wittgenstein Society 1999, pp. 204-213.

Royakkers, L.M.M. and F. Dignum, Collective Commitment and Obligation, the IDG Fifth International Conference on Law in the Information Society, Firenze, pp. 1008-1022, 1998.

Royakkers, L.M.M. and F. Dignum, The logic of enactment, in: M. Gawler (editor), Proceedings of ICAIL-97, the Sixth International Conference on Artificial Intelligence and Law, Melbourne, 1997, pp. 39-43.

Royakkers, L.M.M., Giving permission implies giving choice, in: Eight International Workshop on Database and Expert Systems Applications, IEEE Computer Society, 1997, pp. 198-205.

Royakkers, L.M.M. and F. Dignum, Collective obligation, in: Proceedings of the Seventh Dutch Conference on Artificial Intelligence (NAIC-95), Erasmus University Rotterdam, pp. 351-360, 1995.

Royakkers, L.M.M., Towards a deontic logic approach to legal rules, in: A.J.I. Jones and M. Sergot (editors), Second International Workshop on Deontic Logic in Computer Science, Tano A.S., Oslo, pp. 319-332, 1993.