Search results for: X. Liu
European Journal of Operational Research > 2011 > 208 > 1 > 12-18
European Journal of Operational Research > 2009 > 196 > 1 > 43-48
European Journal of Operational Research > 2011 > 208 > 1 > 12-18
European Journal of Operational Research > 2009 > 196 > 1 > 43-48