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 Young Researchers in Cybernetics and System Sciences! UES2018 CALL! by Stefan Blachfellner 8 years ago Systemicum 2018 in Vienna – Systems Thinking 3.0 – time travel to the pioneers of Systemic Consulting by Stefan Blachfellner 7 years ago Starting the ISSS 2015 conference in Berlin with Systems Philosophy and its Relevance for Systems Engineering by Stefan Blachfellner 10 years ago