Nondifferentiable second order symmetric duality in multiobjective programming

@article{Ahmad2005NondifferentiableSO,
title={Nondifferentiable second order symmetric duality in multiobjective programming},
author={Izhar Ahmad and Z. Husain},
journal={Appl. Math. Lett.},
year={2005},
volume={18},
pages={721-728}
}