1. Bisdorff, R., Roubens, M.: On defining and computing fuzzy kernels from Lvalued simple graphs. In: Ruan, D., et al. (eds.) Intelligent Systems and Soft Computing for Nuclear science and Industry, FLINS 1996 Workshop, pp. 113–123. World Scientific Publishers, Singapore (1996)
2. Fodor, J., Roubens, M.: Fuzzy Preference Modelling and Multi-criteria Decision Support. Kluwer Academic Publishers, Dordrecht (1994)
3. Fodor, J.C., Perny, P., Roubens, M.: Decision Making and Optimization. In: Ruspini, E., Bonissone, P., Pedrycz, W. (eds.) Handbook of Fuzzy Computation, pp.F.5.1 : 1–14. Institute of Physics Publications/Oxford University Press, Bristol (1998)
4. Operations Research and Statistics;J. Fodor,1998
5. Kitainik, L.: Fuzzy Decision Procedures with Binary Relations: towards an unified Theory. Kluwer Academic Publishers, Dordrecht (1993)