Kakehashi, Y. Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
Fulde, P. Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
Kakehashi, Y., Nakamura, T., & Fulde, P. (2010). Non local theory of excitations applied to the Hubbard model. Journal of Physics Conference Series, 200: 012075. doi:10.1088/1742-6596/200/1/012075.