@article{Kahraman:168208,
      author        = "Kahraman, F. and Madre, M. A. and Rasekh, S. and Salvador,
                       C. and Bosque, P. and Torres, M. A. and Diez, J. C. and
                       Sotelo, A.",
      title         = "{Enhancement of mechanical and thermoelectric properties
                       of Ca3Co4O9 by Ag addition}",
      year          = "2015",
}