Columbia subject headings:
Martinskirche (Linz, Austria)
Harvard subject headings:
Architecture, Roman--Austria--Linz.
Church architecture--Austria--Linz.
Church buildings--Austria--Linz.
Linz (Austria)--Antiquities, Roman.
Linz (Austria)--Buildings, structures, etc.
Martinskirche (Linz, Austria)
Princeton subject headings: