Columbia subject headings:
Mysticism--Early works to 1800.
Stiftsbibliothek Einsiedeln. Manuscript. 278.
Harvard subject headings:
Mysticism--Early works to 1800
Rudolf, von Biberach, approximately 1270- De septem itineribus aeternitatis.
Stiftsbibliothek Einsiedeln. Manuscript. Einsiedeln 278.
Princeton subject headings: