[Utilization rates and turnover times as indicators of OR workflow efficiency] Schuster, M Wicha, L L Fiege, Marko Goetz, A E 2007 - Forschungsinformationssystem des UKE
[Key performance indicators of OR efficiency. Myths and evidence of key performance indicators in OR management] Schuster, M Wicha, L L Fiege, Marko 2007 - Forschungsinformationssystem des UKE