Paper on Weiss and Bertalanffy presented at the ISSS 2006 50th annual meeting Stefan Blachfellner vor 20 Jahren 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 Wien 2012 | European Meetings on Cybernetics and Systems Research 2012 (emcsr 2012) by Stefan Blachfellner 15 Jahren ago Doctor awarded for dissertation on Computational General System Theory by Stefan Blachfellner 17 Jahren ago Successful programme by David Rousseau, leader of the BCSSS Research Group Systems Science and Philosophy, at INCOSE International Workshops (INCOSE IW18) by Stefan Blachfellner 9 Jahren ago