Efficiency and Duality in Nonsmooth Multiobjective Fractional Programming Involving η-pseudolinear Functions S.K. Mishra, B.B. Upadhyay (2012) The Yugoslav Journal of Operations Research
Evaluating Fuzzy Inequalities and Solving Fully Fuzzified Linear Fractional Programs B. Stanojević, I.M. Stancu-Minasian (2012) The Yugoslav Journal of Operations Research