Columbia subject headings:
Harvard subject headings:
German language--Old High German, 750-1050--Grammar, Historical.
German language--Old High German, 750-1050--History.
German language--Old High German, 750-1050--Social aspects.
German literature--Old High German, 750-1050--Criticism, Textual.
Princeton subject headings:
German literature--Old High German, 750-1050--Criticism, Textual.