@book{Esser2006,
  author    = {Esser, Hartmut},
  title     = {Migration, Sprache und Integration},
  series = {AKI-Forschungsbilanz},
  journal   = {AKI-Forschungsbilanz},
  number    = {4},
  publisher = {WZB},
  address   = {Berlin},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-bbdig-111},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {119},
  year      = {2006},
  language  = {de}
}