European Journal of Operational Research
European Journal of Operational Research > 2016 > 249 > 2 > 476-486
European Journal of Operational Research > 2016 > 250 > 3 > 865-873
European Journal of Operational Research > 2016 > 252 > 1 > 220-231
European Journal of Operational Research > 2016 > 254 > 3 > 1074-1082