Columbia subject headings:
Architecture--Conservation and restoration--Germany.
Buildings--Remodeling for other use--Germany.
KSP Engel und Zimmermann.
Urban renewal--Germany.
Harvard subject headings:
Architects--Germany
Architectural firms--Germany.
Architecture--Conservation and restoration--Germany.
Buildings--Repair and reconstruction--Germany.
Engel, Jürgen J. K., 1954---Criticism and interpretation.
KSP Engel und Zimmermann.
Zimmermann, Michael, 1956---Criticism and interpretation.
Princeton subject headings:
Architecture--Conservation and restoration--Germany.
Buildings--Remodeling for other use--Germany.
KSP Engel und Zimmermann.
Urban renewal--Germany.