Petz, D. and Raggio, G. A. and Verbeure, A. (1988) Asymptotics of Varadhan-type and the Gibbs Variational Principle. (Preprint)
Raggio, G. A. (1988) The Free Energy of the Spin Boson Model. (Preprint)
Raggio, G. A. (1987) Two level systems interacting with bosons: thermodynamic limit of thermodynamic functions. (Preprint)
Raggio, G. A. and Werner, R. F. (1988) Quantum Statistical Mechanics of General Mean Field Systems. (Preprint)