@article{HeldBackhaus2016,
  author    = {Held, J. and Backhaus, C.},
  title     = {Ergonomie und Usability},
  series = {mt-Medizintechnik},
  volume    = {136},
  journal   = {mt-Medizintechnik},
  issn      = {0344-9416},
  pages     = {2-3},
  year      = {2016},
  language  = {en}
}
@article{BackhausHeld2015,
  author    = {Backhaus, C. and Held, J.},
  title     = {Innovation und Gestaltung in der Medizintechnik},
  series = {mt-Medizintechnik 135 Jg. S. 3},
  volume    = {135},
  journal   = {mt-Medizintechnik 135 Jg. S. 3},
  issn      = {0344-9416},
  pages     = {3},
  year      = {2015},
  language  = {de}
}