@article{Sanz:78268,
      author        = "Sanz, Beatriz and Calatayud, M. Pilar and Cassinelli,
                       Nicolás and Ibarra, M. Ricardo and Goya, Gerardo F.",
      title         = "{Long-term stability and reproducibility of magnetic
                       colloids are key issues for steady values of specific power
                       absorption over time}",
      year          = "2015",
}