European Journal of Operational Research
European Journal of Operational Research > 2018 > 265 > 1 > 26-38
European Journal of Operational Research > 2018 > 266 > 3 > 1100-1112
European Journal of Operational Research > 2018 > 265 > 1 > 26-38
European Journal of Operational Research > 2018 > 266 > 3 > 1100-1112