Columbia subject headings:
Artists--Germany--Correspondence.
Authors, German--Correspondence.
Hauptmann, Carl, 1858-1921--Correspondence.
Worpsweder Künstlervereinigung.
Harvard subject headings:
Princeton subject headings:
Artists--Germany--Correspondence.
Authors, German--Correspondence.
Hauptmann, Carl, 1858-1921--Correspondence.
Worpsweder Künstlervereinigung.