European Journal of Operational Research
European Journal of Operational Research > 2017 > 262 > 3 > 929-943
European Journal of Operational Research > 2017 > 263 > 3 > 996-1006
European Journal of Operational Research > 2017 > 262 > 3 > 929-943
European Journal of Operational Research > 2017 > 263 > 3 > 996-1006