European Journal of Operational Research
European Journal of Operational Research > 1996 > 89 > 1-2 > 86-99
European Journal of Operational Research > 1996 > 92 > 2 > 281-301
European Journal of Operational Research > 2006 > 175 > 2 > 1117-1140
European Journal of Operational Research > 2009 > 193 > 2 > 396-411