“Ein Freund des Bischofs Gregorius Thomas Ziegler”, Newspaper article about Johann Christoph Stelzhammer in Linzer Volksblatt, 5 July 1931
Linzer Volksblatt, 5. Juli 1931, S. 6 [https://anno.onb.ac.at/cgi-content/anno?aid=lvb&datum=19310705&seite=6]
“Ein Freund des Bischofs Gregorius Thomas Ziegler”, Newspaper article about Johann Christoph Stelzhammer in Linzer Volksblatt, 5 July 1931