@article{Sperber1980,
  author    = {Sperber, M.},
  title     = {Von Not und Nutzen der Einsamkeit},
  journal   = {H. J. Schultz (Ed.), Einsamkeit, Stuttgart and Berlin (Kreuz Verlag) 1980, pp. 10-20.},
  year      = {1980},
  language  = {de}
}