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2. H.J. Warnecke, The Fractal Company—A Revolution in Corporate Culture, Springer Verlag, ISBN 3-540-56537, 1993.
3. C. Handy, The Age of Unreason, Arrow Books, London, ISBN 0-09954831-3, 1992.
4. S. Weinburg, Dreams of a Final Theory, Vintage Books, New York. ISBN 0-679-74408-8, 1992.
5. C. Handy, Understanding Organisations, 4th edn., ISBN 014-01401-56038, Penguin, Harmondsworth, Middx., 1993.