@article{Sotelo:131371,
      author        = "Sotelo, A. and Rasekh, Sh. and Guilmeau, E. and Madre, M.
                       A. and Torres, M. A. and Marinel, S. and Diez, J. C.",
      title         = "{Improved thermoelectric properties in directionally grown
                       Bi2Sr2Co1.8Oy ceramics by Pb for Bi substitution}",
      year          = "2011",
}