European Journal of Operational Research
European Journal of Operational Research > 2018 > 265 > 1 > 208-218
European Journal of Operational Research > 2018 > 265 > 2 > 621-630
European Journal of Operational Research > 2018 > 265 > 3 > 1144-1158
European Journal of Operational Research > 2018 > 266 > 3 > 1025-1037