European Journal of Operational Research
European Journal of Operational Research > 1998 > 107 > 1 > 62-75
European Journal of Operational Research > 2017 > 258 > 2 > 761-777
European Journal of Operational Research > 1998 > 107 > 1 > 62-75
European Journal of Operational Research > 2017 > 258 > 2 > 761-777