Columbia subject headings:
Mainzer Dom. Ostchoranlage.
Mainzer Dom. Westlettner.
Harvard subject headings:
Church architecture--Germany--Mainz (Rhineland-Palatinate)
Mainzer Dom.
Mainzer Dom. Ostchoranlage.
Mainzer Dom. Westlettner.
Princeton subject headings:
Mainz (West Germany). St. Martin (Cathedral). Ostchoranlage.
Mainz (West Germany). St. Martin (Cathedral). Westlettner.