@article{Jiménez:129469,
      author        = "Jiménez,M. S. and Gómez,M. T. and Bolea,E. and
                       Laborda,F. and Castillo,J.",
      title         = "{An approach to the natural and engineered nanoparticles
                       analysis in the environment by inductively coupled plasma
                       mass spectrometry}",
      year          = "2011",
}