@article{GrunwaldSchwill2017,
  author    = {Guido Grunwald and J{\"u}rgen Schwill},
  title     = {Relationship Marketing},
  series   = {Das Wirtschaftsstudium : wisu},
  volume    = {46},
  number    = {8/9},
  issn      = {0340-3084},
  pages     = {931 -- 937},
  year      = {2017},
  language  = {de}
}