Ludwig von Bertalanffy (1901–1972) austrian biologist and philosopher
Von Bertalanffy (1950) " The Theory of Open Systems in Physics and Biology http://vhpark.hyperbody.nl/images/a/aa/Bertalanffy-The_Theory_of_Open_Systems_in_Physics_and_Biology.pdf" In: Science, January 13, 1950, Vol. 111. p. 23 <br class="br">1950s