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Presidents of the International Society for the Systems Sciences
Ilya Prigogine
Heinz von Foerster
Ray Ison
David Rousseau
John Kineman
Gerald Midgley
Kenneth E. Boulding
Alexander Laszlo (scientist)
Jennifer Wilby
Allenna Leonard
Harold A. Linstone
Timothy F. H. Allen
Yong Pil Rhee
Peter Corning
Milton Rubin
Béla A. Bánáthy
Charles A. McClelland
Mike Jackson (systems scientist)
Kenneth D. Bailey (sociologist)
Alexander Christakis
Ian Mitroff
James Grier Miller
John N. Warfield
Karl Deutsch
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