1. Linear Geometry;Artzy,1965
2. An additive value function technique with a fuzzy outranking relation for dealing with poor intercritiria preference information;Bana e Costa,1990
3. The use of qualitative information on the importance of particular criteria for the computation of weighting coefficients;Batishchev,1991
4. Introduction to Matrix Analysis;Bellman,1965
5. A preference ranking organization method: The PROMETHEE method for MCDM;Brans;Management Science,1985