author        = "Nymark, P. and Alstrup, J. K. and Suhonen, S. and
                       Kembouche, Y. and Vippola, M. and Kleinjans, J. and
                       Catalán, J. and Norppa, H. and van Delft, J. and Briedé,
                       J. J.",
      title         = "{Free radical scavenging and formation by multi-walled
                       carbon nanotubes in cell free conditions and in human
                       bronchial epithelial cells}",
      year          = "2014",