@article{EngelHoltmannUlberetal.2018,
  author    = {Mareike Engel and Dirk Holtmann and Roland Ulber and Nils Tippk{\"o}tter},
  title     = {Increased Biobutanol Production by Mediator-Less Electro-Fermentation},
  journal   = {Biotechnology Journal},
  volume    = {14},
  number    = {4},
  doi       = {10.1002/biot.201800514},
  year      = {2018},
}