1. Goldman-Rakic, P.S.: Prefrontal Cortical Dysfunction in Schizophrenia: the Relevance of Working Memory. In: Carrol, B.J., Barrets, J.E. (eds.): Psychology and the Brain. Raven Press, New York (1991).
2. Saugstad, L.F.: The Maturational Theory of Brain Development and Cerebral Excitability in the Multifactorially Inherited Manic-depressive Psychosis and Schizophrenia. Int. J. Psychophysiol. 18 (1994) 189–203.
3. Cotterill, R.M.J.: Enchanted Looms – Conscious Networks in Brains and Computers. Cambridge University Press, Cambridge (1998).
4. Liljenström, H.: Cognition and the Efficiency of Neural Systems. In: Århem, P., Liljenström, H., Svedin, U. (eds.): Matter Matters? On the Material Basis of the Cognitive Activity of Mind. Springer, Heidelberg (1997) 177–213.
5. Liljenström, H.: Autonomous Learning With Complex Dynamics. Int. J. Intell. Syst. 10 (1995) 119–153.