International Transactions in Operational Research
International Transactions in Operational Research > 26 > 2 > 747 - 764
International Transactions in Operational Research > 26 > 6 > 2362 - 2386
International Transactions in Operational Research > 26 > 2 > 747 - 764
International Transactions in Operational Research > 26 > 6 > 2362 - 2386