European Journal of Operational Research
European Journal of Operational Research > 2018 > 264 > 2 > 653-664
European Journal of Operational Research > 2018 > 265 > 1 > 81-98
European Journal of Operational Research > 2018 > 265 > 2 > 503-516
European Journal of Operational Research > 2018 > 266 > 3 > 1100-1112