References
- Boulding , K.E. 1945 . There is a Sprit: the Nayler Sonnets , Nyack, Ny : Fellowship publications .
- Boulding , K.E. 1957 . General System Theory—the Skeleton of Science . General System , 1
- Kerman , C.E. 1974 . Creative Tension. The Life and Though of Kenneth Boulding , Ann Arbor : The University of Michigan Press .
- Korzybski , A. 1933 . Science and Sanity , Lancaster, PA : Science Press .
- Rapoport , A. 1960 . Fights, Games, and Debates , Ann Arbor : The University of Michigan Press .
- Rapoport , A. 1994 . Gewissheiten und Zweifel , Darmstadt : Verlag Darmstadter Blatter .