European Journal of Operational Research
European Journal of Operational Research > 2013 > 229 > 2 > 353-363
European Journal of Operational Research > 2017 > 257 > 2 > 483-493
European Journal of Operational Research > 2013 > 229 > 2 > 353-363
European Journal of Operational Research > 2017 > 257 > 2 > 483-493