1. Lynch, C., Ashley, K.D., Pinkwart, N., Aleven, V.: Concepts, structures and goals: Redefining ill-definedness. International Journal of Artificial Intelligence in Education 19, 253–266 (2009)
2. Grabmair, M., Ashley, K.D.: Argumentation with value judgments – An example of hypothetical reasoning. In: Winkels, R. (ed.) Legal Knowledge and Information Systems JURIX 2010: The 23rd Annual Conference, pp. 67–76. IOS Press, Amsterdam (2010)
3. Grabmair, M., Ashley, K.D.: Facilitating case comparison using value judgments and intermediate legal concepts. In: Ashley, K., van Engers, T. (eds.) Proceedings of ICAIL 2011, pp. 161–170. ACM Press, New York (2011)
4. Prakken, H., Sartor, G.: Modeling reasoning with precedents in a formal dialogue game. Artificial Intelligence and Law 6, 231–287 (1998)
5. Ehrgott, M.: Multicriteria optimization. Springer, Heidelberg (2005)