List of Articles Open Access Article Abstract Page Full-Text 1 - Portfolio selection through imprecise Goal Programming model: Integration of the manager`s preferences N Mansour A Rebai B Aouni Open Access Article Abstract Page Full-Text 2 - Numerical modeling of economic uncertainty H Schjær-Jacobsen Open Access Article Abstract Page Full-Text 3 - Fuzzy model for risk analysis F Luban Open Access Article Abstract Page Full-Text 4 - A new Simulated Annealing algorithm for the robust coloring problem M.A Gutiérrez-Andrade P Lara-Velázquez S.G de-los-Cobos-Silva Open Access Article Abstract Page Full-Text 5 - Correlation coefficient of intuitionistic fuzzy sets W Zeng H Li Open Access Article Abstract Page Full-Text 6 - A fuzzy approach to the evaluation of human factors in ultrasonic nondestructive examinations J Domech Moré A.S Guimarães G Bonorino Xexéo R Tanscheit Open Access Article Abstract Page Full-Text 7 - Comparison of the performances of neural networks specification, the Translog and the Fourier flexible forms when different production technologies are used R Feki