European Journal of Operational Research
European Journal of Operational Research > 2017 > 257 > 1 > 233-242
European Journal of Operational Research > 2017 > 257 > 2 > 483-493
European Journal of Operational Research > 2017 > 260 > 3 > 1014-1023
European Journal of Operational Research > 2017 > 263 > 3 > 838-863