@misc{Ahillen2017,
  author    = {Ahillen, Steve},
  title     = {German professor finishes 652-mile Tennessee River swim},
  series = {Tennessean},
  journal   = {Tennessean},
  number    = {29.08.2017},
  year      = {2017},
  language  = {en}
}
@misc{Ahillen2017,
  author    = {Ahillen, Steve},
  title     = {German professor to swim Tennessee River, test its waters},
  series = {Knox news},
  journal   = {Knox news},
  number    = {26.07.2017},
  year      = {2017},
  language  = {en}
}