J. R. Gibbs and R. Lindsay, Elementary principles in statistical mechanics in Collected Works, Foundations of physics, 1948.

M. Gell-mann, C. Tsallis, and E. , ) and references therein; Plastino A R and Plastino A, Nonextensive Entropy: Interdisciplinary applications, p.140, 1994.

A. R. Plastino and A. Plastino, Information theory, approximate time dependent solutions of Boltzmann's equation and Tsallis' entropy, Physics Letters A, vol.193, issue.3, p.251, 1994.
DOI : 10.1016/0375-9601(94)90592-4

N. Goldenfeld, Lectures on phase transitions and the renormalization group, 1992.

W. Rudin, Functional Analysis, 1991.