Paper on Weiss and Bertalanffy presented at the ISSS 2006 50th annual meeting Stefan Blachfellner 18 years ago At the ISSS 2006 (50th Annual Meeting) a paper by Drack and Apfalter was presented: Is Paul Weiss’ and Ludwig von Bertalanffy’s System Thinking still valid today? Related posts Chroust and Hofkirchner attending IASCYS General Assembly in Chengdu by Stefan Blachfellner 14 years ago Evaluation scales for Digital Health Technology Assessment (DHTA) by Stefan Blachfellner 5 years ago ISSS2017 Vienna. A Review! by Stefan Blachfellner 7 years ago