Temperature concepts for small, isolated systems; 1/t decay and radiative coolingJ. U. Andersen, E. Bonderup, K. Hansen, P. Hvelplund, B. Liu, U. V. Pedersen and S. TomitaEur. Phys. J. D, 24 1-3 (2003) 191-196DOI: https://doi.org/10.1140/epjd/e2003-00180-y