1. All papers are available at http://physics.umd.edu/~yakovenk/econophysics/
2. L.D. Landau, E.M. Lifshitz, Statistical Physics (Butterworth-Heinemann, 1980)
3. A.A. Drăgulescu, V.M. Yakovenko, Eur. Phys. J. B 17, 723 (2000)
4. E.M. Lifshitz, L.P. Pitaevskii, Physical Kinetics (Butterworth-Heinemann, 1981)
5. S. Ispolatov, P.L. Krapivsky, S. Redner, Eur. Phys. J. B 2, 267 (1998)