@book{GellenbeckRiemenschneiderBernhold2014,
  author    = {Gellenbeck, K. and Riemenschneider, F. and Bernhold, T.},
  title     = {Digitaler Tagungsband 12. M{\"u}nsteraner Facility Management Tag},
  publisher = {INFA-ISFM e. V.},
  address   = {Ahlen},
  pages     = {94 S},
  year      = {2014},
  language  = {mul}
}
@book{GellenbeckRiemenschneider2015,
  author    = {Gellenbeck, K. and Riemenschneider, F.},
  title     = {Digitaler Tagungsband 13. M{\"u}nsteraner Facility Management Tag},
  publisher = {INFA-ISFM e.V.},
  address   = {Ahlen},
  isbn      = {ISSN (CD) 2195-294},
  pages     = {41 S.},
  year      = {2015},
  language  = {mul}
}
@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}
}
@book{GellenbeckScheffoldRinschede2015,
  author    = {Gellenbeck, K. and Scheffold, K. and Rinschede, A.},
  title     = {Kosten und Nutzen von Trittbrettern an Heckladefahrzeugen bei der kommunalen Abfallsammlung},
  volume    = {16},
  address   = {K{\"o}ln},
  pages     = {72},
  year      = {2015},
  language  = {de}
}
@book{GellenbeckDornbuschLuedkeetal.2016,
  author    = {Gellenbeck, K. and Dornbusch, H.-J. and L{\"u}dke, A. and Oelgem{\"o}ller, D.},
  title     = {R{\"u}ckw{\"a}rtsfahren bei der Abfall- und Wertstoffsammlung},
  pages     = {37},
  year      = {2016},
  language  = {de}
}