@article{TeitscheidFriedrichLangenetal.2019,
  author    = {Petra Teitscheid and Silke Friedrich and N. Langen and M. Speck and K. Bienge and T. Engelmann},
  title     = {Nachhaltigkeit in der Außer-Haus-Gastronomie},
  journal   = {rhw management},
  volume    = {2018},
  number    = {7/8},
  pages     = {40 -- 41},
  year      = {2019},
}