Columbia subject headings:
Almshouses--Germany--Regensburg--Congresses.
Asylums--Germany--Regensburg--Congresses.
Barrier-free design for older people--Germany--Regensburg--Congresses.
Harvard subject headings:
Almshouses--Germany--Regensburg--Congresses.
Asylums--Germany--Regensburg--Congresses.
Barrier-free design for older people--Germany--Regensburg--Congresses.
Princeton subject headings:
Historic buildings--Germany--Regensburg--Congresses.
Hospital architecture--Germany--Regensburg--Congresses.
Regensburg (Germany)--Buildings, structures, etc.--Congresses.