Marsch, E. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society; Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society;
Steeb, W.-H., & Marsch, E. (1974). Thermodynamics of a two-band Hubbard model. Phys. Stat. Sol. (b), 65, 403-410.