@book{gutmann1926,
  address   = {München},
  author    = {Gutmann, B.},
  key       = {Gutmann (1926)},
  pages     = {1-1733},
  publisher = {München: Verlagshandlung Oskar Beck},
  series    = {Arbeiten zur Entwicklungspsychologie},
  title     = {Das Recht der Dschagga},
  volume    = {7},
  year      = {1926}
}