Columbia subject headings:
Church buildings--Lighting--Congresses.
Lighting, Architectural and decorative--Congresses.
Harvard subject headings:
Exterior lighting--Germany--Congresses.
Interior lighting--Germany--Congresses.
Light in architecture--Congresses.
Lighting, Architectural and decorative--Congresses.
Princeton subject headings:
Exterior lighting--Germany--Congresses.
Interior lighting--Germany--Congresses.
Light in architecture--Congresses.
Lighting, Architectural and decorative--Congresses.