@incollection{RotterOttoUeberschaaretal.2016,
  author    = {Rotter, S. and Otto, S. and Ueberschaar, M. and Chancerel, P. and Flamme, S.},
  title     = {Resultate aus dem Projekt UPgrade - Beispiel Gallium},
  series = {Thom{\´e}-Kozmiensky, Goldmann, D. (Hrsg.): Recycling und Rohstoffe, Band 9},
  booktitle = {Thom{\´e}-Kozmiensky, Goldmann, D. (Hrsg.): Recycling und Rohstoffe, Band 9},
  publisher = {TK-Verlag},
  address   = {Berlin},
  isbn      = {978-3-944310-27-5},
  pages     = {141 -- 162},
  year      = {2016},
  language  = {de}
}
@book{GellenbeckFlammeGallenkemperetal.2015,
  author    = {Gellenbeck, K. and Flamme, S. and Gallenkemper, B. and Rotter, S. and Kranert, M. and Quicker, P.},
  title     = {Tagungsband 14. M{\"u}nsteraner Abfallwirtschaftstage},
  volume    = {Band 16},
  address   = {M{\"u}nster},
  isbn      = {978-3-98111 42-5-6},
  pages     = {428},
  year      = {2015},
  language  = {de}
}