Paper on Weiss and Bertalanffy presented at the ISSS 2006 50th annual meeting Stefan Blachfellner 20 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 David Rousseau at the ISSS2017 Vienna: SIG Chairs and Incoming President Talk by Stefan Blachfellner 9 years ago Executive Symposium on the Future of Mulitmodal Freight Transport by Stefan Blachfellner 9 years ago ONE DAY: The Conference 2021 – The road to systems change – Panel Session by Judy Al Saman 6 years ago