http://reply.papertrans.cn/2/199/19818/19818-21.png
http://reply.papertrans.cn/2/199/19818/19818-22.png
Submitted on: 28 June 2020.
Revised on: 19 September 2020.
Accepted on: 01 November 2020.
___________________JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY
http://reply.papertrans.cn/2/199/19818/19818-24.png
http://reply.papertrans.cn/2/199/19818/19818-25.png
Submitted on: 28 November 2022.
Revised on: 01 February 2023.
Accepted on: 21 February 2023.
___________________JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY
http://reply.papertrans.cn/2/199/19818/19818-27.png
http://reply.papertrans.cn/2/199/19818/19818-28.png
Submitted on: 14 March 2024.
Revised on: 03 July 2024.
Accepted on: 03 August 2024.
___________________JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY
Submitted on: 05 August 2000.
Revised on: 30 October 2000.
Accepted on: 17 December 2000.
___________________JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY