@article{Torres:168056,
      author        = "Torres, M.A. and Rasekh, Sh. and Bosque, P. and
                       Constantinescu, G. and Madre, M.A. and Diez, J.C. and
                       Sotelo, A.",
      title         = "{Decrease of electrical resistivity in Ca3Co4O9
                       thermoelectric ceramics by Ti doping}",
      year          = "2015",
}