European Journal of Operational Research
European Journal of Operational Research > 2017 > 260 > 1 > 70-80
European Journal of Operational Research > 2017 > 263 > 3 > 805-814
European Journal of Operational Research > 2017 > 260 > 1 > 70-80
European Journal of Operational Research > 2017 > 263 > 3 > 805-814