Comparison between the rotating wave and Feynman-Vernon system-reservoir couplings in the non-Markovian regimeF. Intravaia, S. Maniscalco and A. MessinaEur. Phys. J. B, 32 1 (2003) 97-107DOI: https://doi.org/10.1140/epjb/e2003-00078-6