Columbia subject headings:
Germany--History--1517-1648.
Germany--Relations--Switzerland.
Switzerland--History--1499-1648.
Switzerland--Relations--Germany.
Harvard subject headings:
Germany--History--1517-1648.
Germany--Relations--Switzerland.
Switzerland--History--1499-1648.
Switzerland--Relations--Germany.
Princeton subject headings:
Germany--Civilization--Swiss influences--Congresses.