International Transactions in Operational Research
International Transactions in Operational Research > 18 > 2 > 271 - 291
International Transactions in Operational Research > 18 > 4 > 493 - 511
International Transactions in Operational Research > 29 > 5 > 2815 - 2840
International Transactions in Operational Research > 29 > 5 > 2789 - 2814
International Transactions in Operational Research > 30 > 2 > 774 - 799