Reyes Navarro, Felipe Américo, Torres-Tapia, Eusebio Castor, Peña, Pedro Pacheco. “Grand canonical ensemble of the extended two-site Hubbard model via a nonextensive distribution.” Journal of Theoretical and Applied Physics, vol. 0, no. 1, 2013, pp. 0-0. 10.1186/2251-7235-7-20