@article{DBLP:journals/eor/Wu09b,
author = {Hsien-Chung Wu},
title = {The Karush-Kuhn-Tucker optimality conditions in multiobjective
programming problems with interval-valued objective functions},
journal = {European Journal of Operational Research},
volume = {196},
number = {1},
year = {2009},
pages = {49-60},
ee = {http://dx.doi.org/10.1016/j.ejor.2008.03.012},
bibsource = {DBLP, http://dblp.uni-trier.de}
}