@Book{Hoffmann1959,
author  = "Hoffmann, Helmut",
title   = "Wilhelm Geiger",
year    = "1959",
address = "",
series  = "Geist und Gestalt. Geisteswissenschaften",
volume  = "Seite 103-112",
url     = "https://publikationen.badw.de/de/043601596",
}