@book{Guski-Leinwand2014,
  author    = {Guski-Leinwand, Susanne},
  title     = {Gustav Levinstein},
  publisher = {Hentrich \& Hentrich},
  address   = {Berlin},
  isbn      = {978-3-95565-024-7},
  pages     = {64},
  year      = {2014},
  language  = {de}
}
@book{L{\"u}ckGuski-Leinwand2014,
  author    = {L{\"u}ck, Helmut E. and Guski-Leinwand, Susanne},
  title     = {Geschichte der Psychologie},
  publisher = {Kohlhammer},
  address   = {Stuttgart},
  isbn      = {978-3-17-026141-9},
  pages     = {272},
  year      = {2014},
  language  = {de}
}