1. Luhmann, M.: Social systems. Sketch of the general theory. St. Petersburg: Science, p. 668 (2000)
2. Popkov, V.V.: The metaphysics of economics: what is a meaning worth? University of Athens, School of Philosophy, Zografos, p. 575 (2013)
3. The Information Age: Economy, Society and Culture;M Castells,2000
4. (Boston Studies in the Philosophy of Science);HR Maturana,1980
5. Ignatova, M.A., Selezneva, N.A. Ulyanov, E.A.: Municipal Economics: Domestic Market Financial Network Model. Modern Problems of Science and Education, 2 (2014).
http://www.science-education.ru/116-12901
. Accessed 04 November 2014