News doi:10.1057/palgrave.jors.2602147 Combining PSMs with hard OR methods: the philosophical and practical challenges K Kotiadis & J Mingers This article appears in: Journal of the Operational Research Society 57, 856 - 867 (01 July 2006) $article.getProductBean().getName() aop, (06 September 2007) $article.getProductBean().getName() 900, (06 May 2009) $article.getProductBean().getName() 900, (21 May 2009)