Landtag NRW: Ergebnisanzeige-1 https://www.landtag.nrw.de/home/service/bibliothek-1/ergebnisanzeige-1.html?w=native%28%27+%28%28%28%28SCHLAGWORT+phrase+like+%27%27parlamentsgeschichte%27%27%29+and+%28REGION+phrase+like+%27%270018%27%27%29%29+or+%28%28%28KORB+phrase+like+%27%270321%27%27%29+or+%28SYSTEMATIK+phrase+like+%27%27POL%27%27+AND+SYSTEMATIK+phrase+like+%27%27fh%27%27%29%29+and+%28%28SCHLAGWORT+phrase+like+%27%27landesgeschichte%27%27%29+or+%28SYSTEMATIK+phrase+like+%27%27his%27%27+AND+SYSTEMATIK+phrase+like+%27%27n%27%27%29%29%29%29+or+%28%28%28KORB+phrase+like+%27%270321%27%27%29+or+%28SYSTEMATIK+phrase+like+%27%27POL%27%27+AND+SYSTEMATIK+phrase+like+%27%27fh%27%27%29%29+and+%28SCHLAGWORT+phrase+like+%27%27jubil%C3%A4um%27%27%29%29%29%27%29&order=AUTORSORT
Löhr, Wolfgang: Wilhelm Elfes (1884-1969). in: Zeitgeschichte in Lebensbildern.