Search results
European Journal of Operational Research > 2011 > 211 > 2 > 370-384
European Journal of Operational Research > 2008 > 186 > 2 > 856-881
European Journal of Operational Research > 2011 > 211 > 2 > 370-384
European Journal of Operational Research > 2008 > 186 > 2 > 856-881