@article{GuettlerHackethal2006,
  author    = {Andr{\´e} G{\"u}ttler and Andreas Hackethal},
  title     = {Conquering the german retail banking market: the case of ING-DiBa},
  journal   = {EFL quarterly : an E-Finance Lab publication},
  volume    = {2006},
  number    = {3},
  pages     = {6 -- 8},
  year      = {2006},
}