For example, Gurav and Regulwar (2012) presented
a multiobjective fuzzy linear programming (MOFLP) model, which
deals with the fuzziness in resources and decision variables; it focuses
on the four objectives namely maximization of net benefits, maximization
of crop production, maximization of employment generation and
maximization of manure utilization. Pishvaee et al. (2012) developed
credibility-based fuzzy mathematical programming model for green logistics
design with fuzzy right-hand side parameters. As for the credibility
objectives, Lan et al. (2010) proposed an approximation-based
approach for multi-period production planning problem with fuzzy objective
by credibility measure. Whenever there are fuzzy parameters in
both sides of the constraints, one most used method is to transform the
fuzzy equation to several deterministic constraints by using alpha-cut.
Lau et al. (2010) proposed a credibility-based fuzzy location model for
the design of distribution systems, where both market supply and customer
demand were treated as fuzzy variables. Rong and Lahdelma
(2008) presented the fuzzy credibility constrained model for scrap
charge optimization by using this method.