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Gregory, Frank Hutson (January 1992) Cause, Effect, Efficiency & Soft Systems Models (页面存档备份,存于互联网档案馆) Warwick Business School Research Paper No. 42. With revisions and additions it was published in the Journal of the Operational Research Society (1993) 44(4), pp. 149–68.
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Gregory, Frank Hutson (January 1992) Cause, Effect, Efficiency & Soft Systems Models (页面存档备份,存于互联网档案馆) Warwick Business School Research Paper No. 42. With revisions and additions it was published in the Journal of the Operational Research Society (1993) 44(4), pp. 149–68.